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光电效应实验教学中截止电压变化原因的探讨
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作者 郑晓 刘丰宁 张国锋 《大学物理》 2025年第6期48-52,62,共6页
在光电效应实验教学中,通过测量不同频率下的截止电压,可以计算出普朗克常数,从而验证爱因斯坦光电效应方程的正确性,并加深对光的量子特性的理解.爱因斯坦的光电效应方程表明,截止电压是光频率的函数,而与光强度无关.然而,实验中发现... 在光电效应实验教学中,通过测量不同频率下的截止电压,可以计算出普朗克常数,从而验证爱因斯坦光电效应方程的正确性,并加深对光的量子特性的理解.爱因斯坦的光电效应方程表明,截止电压是光频率的函数,而与光强度无关.然而,实验中发现截止电压的变化与光强度有关,因为光强度影响光电子的发射数量.不过,一旦达到饱和状态,光强度对截止电压便不再产生影响.此外,暗电流的存在也会影响截止电压的测量,带来误差.对这些因素的系统分析,有助于学生全面理解光电效应及其量子性质. 展开更多
关键词 光电效应 普朗克常数 截至电压
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温度对零电流法测普朗克常数实验的影响
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作者 王云志 孙会娟 《物理与工程》 2025年第2期302-306,共5页
在用汞灯作为光源的光电效应实验中,为了找到最佳的预热时间,使用二十多台同一厂家的光电效应实验仪,在常温下,使用秒表记录预热时间,用激光红外测温仪测量了不同预热时间对应的汞灯光源的温度。用零电流法测得五种滤色片对应的遏止电... 在用汞灯作为光源的光电效应实验中,为了找到最佳的预热时间,使用二十多台同一厂家的光电效应实验仪,在常温下,使用秒表记录预热时间,用激光红外测温仪测量了不同预热时间对应的汞灯光源的温度。用零电流法测得五种滤色片对应的遏止电压。通过开空调和电风扇来降低汞灯表面的温度,与常温下相比较,在同样的预热时间下,计算出普朗克常数以及相对误差,找到了零电流法测定普朗克常数实验中汞灯光源的最佳预热时间,分析了汞灯温度对普朗克常数测量结果影响的定性关系。 展开更多
关键词 光电效应 普朗克常数 零电流法 预热时间
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用能量色散型X射线衍射仪测量普朗克常量
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作者 武宝一 王春梅 沈国土 《物理实验》 2025年第4期37-41,共5页
X射线衍射仪可以采用X射线谱短波限法测量普朗克常量.通过能量色散模式测得衍射峰道序号,再利用相邻衍射级次的布拉格衍射方程,得到普朗克常量.通过对不同角度的数据进行线性拟合,可以提高测量精度.本文采用不同的定标方式、对衍射峰道... X射线衍射仪可以采用X射线谱短波限法测量普朗克常量.通过能量色散模式测得衍射峰道序号,再利用相邻衍射级次的布拉格衍射方程,得到普朗克常量.通过对不同角度的数据进行线性拟合,可以提高测量精度.本文采用不同的定标方式、对衍射峰道序号进行高斯拟合以及不同的总道数的改进方法,研究了能量色散方式测量普朗克常量的实验误差.实验结果表明:采用不同的定标方式以及对道序号进行拟合可以减小普朗克常量的测量误差,使用不同总道数的实验结果则无显著差别. 展开更多
关键词 普朗克常量 X射线衍射仪 布拉格衍射
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Quantum Cosmology: Cosmology Directly Linked to the Planck Scale in General Relativity Theory and Newton Gravity: The Link between Microcosmos and Cosmos
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作者 Espen Gaarder Haug 《Open Journal of Microphysics》 2025年第1期1-23,共23页
In this paper, we will demonstrate that there is a link between cosmology and the Planck scale. It has, in recent years, been shown that the Planck length can be determined independently of G, ℏ, and c, and that a ser... In this paper, we will demonstrate that there is a link between cosmology and the Planck scale. It has, in recent years, been shown that the Planck length can be determined independently of G, ℏ, and c, and that a series of cosmological predictions can be derived solely from two constants, namely the Planck length and the speed of gravity. The speed of gravity can be easily determined without knowledge of the speed of light [1] [2]. This provides a new perspective on cosmology and demonstrates that there is a link between the Planck scale and cosmology. This is fully consistent with a recent quantization of general relativity theory that links general relativity to the Compton frequency and the Planck scale. We examine both the Friedmann cosmology and the recently introduced cosmology based on the extremal solution of the Reissner-Nordström, Kerr, and Kerr-Newman metric.1. 展开更多
关键词 Hubble Constant Hubble Radius Universe Equation Freedman Universe Extremal Universe Planck Length Compton Length
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基于LabVIEW虚拟仪器和机器视觉测量普朗克常量和光波波长
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作者 黄林 李逸繁 +2 位作者 方杰 熊水兵 唐一文 《物理实验》 2024年第9期15-21,共7页
设计了基于LabVIEW虚拟仪器和机器视觉的普朗克常量和光波波长测量综合实验装置.该装置以发光二极管为测量对象,综合运用了基于机器视觉技术的NI Vision Builder AI,ImageJ以及科学数据绘图软件Origin测得普朗克常量,其大小与普朗克常... 设计了基于LabVIEW虚拟仪器和机器视觉的普朗克常量和光波波长测量综合实验装置.该装置以发光二极管为测量对象,综合运用了基于机器视觉技术的NI Vision Builder AI,ImageJ以及科学数据绘图软件Origin测得普朗克常量,其大小与普朗克常量的公认值接近.另外,该装置为学生提供了测量普朗克常量新的思路和方法,可作为对传统光电效应法测量普朗克常量实验的补充,有利于学生创新能力的培养和提高. 展开更多
关键词 发光二极管 普朗克常量 虚拟仪器 机器视觉 LABVIEW
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电学计量中的量子标准与自然常数
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作者 刘民 屠治国 潘攀 《计测技术》 2024年第1期23-29,共7页
介绍了库仑定律和安培定律在电学单位制中发挥的作用,依据机械功率与电功率等效的原理,选择电流单位安培(A)作为基本物理单位,并介绍了实用单位制和电学实物计量标准。阐述了三种电学计量的量子标准原理和溯源到自然常数的途径,分析了... 介绍了库仑定律和安培定律在电学单位制中发挥的作用,依据机械功率与电功率等效的原理,选择电流单位安培(A)作为基本物理单位,并介绍了实用单位制和电学实物计量标准。阐述了三种电学计量的量子标准原理和溯源到自然常数的途径,分析了真空磁导率在安培定律公式中发挥的作用,探讨了电学量子三角形与欧姆定律兼容的问题。指出基本电荷量常数不是简单地从约瑟夫森常数K_(J-90)和冯·克里青常数R_(H-90)推导而来,而是由精细结构常数公式计算出来的,能量守恒原理是单位制中的第一性原理,是力学和电学计量单位的纽带。提出量子点之间的位移电流对单电子隧道泵有一定的影响,真空磁导率不再是理想的常数,真空磁导率的变化将成为后来理论界研究的重点。 展开更多
关键词 国际单位制 约瑟夫森电压标准 量子化霍尔电阻标准 单电子隧道泵 基本电荷量常数 普朗克常数 精细结构常数 真空磁导率
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普朗克常数h的四个来处
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作者 曹则贤 《大学物理》 2024年第11期1-6,15,共7页
普朗克常数h是普适物理常数之一,是量子理论的标签.普朗克常数h的来处包括普朗克推导黑体辐射谱分布、爱因斯坦诠释光电效应、普朗克(包括玻尔、玻色)的相空间量子化以及薛定谔挽救外尔的引力-电磁理论的努力,其角色包括仅作为常数因子... 普朗克常数h是普适物理常数之一,是量子理论的标签.普朗克常数h的来处包括普朗克推导黑体辐射谱分布、爱因斯坦诠释光电效应、普朗克(包括玻尔、玻色)的相空间量子化以及薛定谔挽救外尔的引力-电磁理论的努力,其角色包括仅作为常数因子使得hν具有能量量纲进而使得hν/kT无量纲量,自身作为作用量子、相空间体积单元或者角动量单元(以=h/2π的面目作为作用-角共轭变量对中的作用的单位,或者角动量算符的单位),以hν的面目作为光能量量子,以及以i h或i的面目出现在波动理论中.不同来处的普朗克常数h间的关联恰恰反映了它的普适性.顺便说一句,普朗克、爱因斯坦在使用hν时都没伴随有革命性的观念. 展开更多
关键词 普朗克常数 光能量量子 作用量子 相空间量子化 相因子
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光电效应法测量普朗克常数
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作者 杨艳霞 《山西大同大学学报(自然科学版)》 2024年第6期28-31,40,共5页
在光电效应测量普朗克常数实验中,采用零电流法探究光源预热时间不同、光源与光电管距离不同、电压调节方向不同的情况对普朗克常数的影响。利用Origin软件对入射光频率v与截止电压Us的关系进行线性拟合,进而计算出普朗克常数。分析得到... 在光电效应测量普朗克常数实验中,采用零电流法探究光源预热时间不同、光源与光电管距离不同、电压调节方向不同的情况对普朗克常数的影响。利用Origin软件对入射光频率v与截止电压Us的关系进行线性拟合,进而计算出普朗克常数。分析得到:光源预热25 min,光源与光电管距离为0.22 m,电压正向调节时为测量普朗克常数的最佳实验条件。 展开更多
关键词 普朗克常数 光电效应 零电流法 截止电压
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Elementary Fermions: Strings, Planck Constant, Preons and Hypergluons
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作者 Doron Kwiat 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第1期82-100,共19页
Using real fields instead of complex ones, it is suggested here that the fermions are pairs of coupled strings with an internal tension. The interaction between the two coupled strings is due to an exchange mechanism ... Using real fields instead of complex ones, it is suggested here that the fermions are pairs of coupled strings with an internal tension. The interaction between the two coupled strings is due to an exchange mechanism which is proportional to Planck’s constant. This may be the result of two massless bosons (hypergluons) coupled by a preon (prequark) exchange. It also gives a physical explanation to the origin of the Planck constant, and origin of spin. 展开更多
关键词 FERMIONS Preons Hypergluons Strings Real Fields Planck Constant INTERFERENCE SPIN
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Gedankenexperiment for Modified ZPE and Planck’s “Constant”, h, in the Beginning of Cosmological Expansion, Partly Due to NLED
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作者 Andrew Walcott Beckwith 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第1期180-184,共5页
We initially look at a non singular universe representation of entropy, based in part on what was brought up by Muller and Lousto. This is a gateway to bringing up information and computational steps (as defined by Se... We initially look at a non singular universe representation of entropy, based in part on what was brought up by Muller and Lousto. This is a gateway to bringing up information and computational steps (as defined by Seth Lloyd) as to what would be available initially due to a modified ZPE formalism. The ZPE formalism is modified as due to Matt Visser’s alternation of k (maximum) ~ 1/(Planck length), with a specific initial density giving rise to initial information content which may permit fixing the initial Planck’s constant, h, which is pivotal to the setting of physical law. The settings of these parameters depend upon NLED. 展开更多
关键词 ZPE Planck’s “Constant” Gedankenexperiment NLED
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Gravity and the Nature of Physical Interactions
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作者 Kajetan Młynarski 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第4期1578-1612,共35页
This work is a kind of thought experiment aimed at answering the question: what might a theory look like in which time and space (spacetime) are not fundamental? The article formulates theoretical frameworks that intr... This work is a kind of thought experiment aimed at answering the question: what might a theory look like in which time and space (spacetime) are not fundamental? The article formulates theoretical frameworks that introduce the number of spacetime dimensions, the principle of equivalence of mass, and the value of the gravitational constant not as empirically given data, but as results of theoretical deduction. This analysis opens up potential connections between gravitational and electrostatic interactions, proposing a new approach to traditional physical assumptions. The theory is presented in a preliminary form, intended to inspire possible further research. The final part of the paper proposes experiments to verify these ideas. 展开更多
关键词 Time SPACE GRAVITY Principle of Equivalence Gravitational Constant Planck Mass
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The Planck Constant and Its Relation to the Compton Frequency
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作者 Espen Gaarder Haug 《Journal of Applied Mathematics and Physics》 2024年第1期168-180,共13页
The Planck constant is considered one of the most important universal constants of physics, and despite all we know much about it, the physical nature of it has not been fully understood. Further investigation and new... The Planck constant is considered one of the most important universal constants of physics, and despite all we know much about it, the physical nature of it has not been fully understood. Further investigation and new perspectives on the Planck constant should therefore be of interest. We demonstrate that the Planck constant also can be directly linked to the Compton frequency of one, which again is divided by the Compton frequency in one kg. If this is right, it means also the Planck constant is linked to quantization of matter, not only energy. However, as we will show the frequency of one when expressed in relation to kg will be observational time dependent. This means the missing mass gap surprisingly both is equal to the Planck mass, which is larger than any known particle and also it is linked to a very small mass that again is equal to what has been suggested as the photon mass in the existing literature. This new view could be an important step forward in understanding the physical nature of the Planck constant as well as the mass gap and even the rest mass of a photon. 展开更多
关键词 Planck Constant Compton Frequency ELECTRON Proton Count
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Modification of Constants in the Schrödinger Equation Giving Access to Neutrino Behavior
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作者 Amaury de Kertanguy 《Journal of Applied Mathematics and Physics》 2024年第11期3860-3868,共9页
The paper deals with a study of the Schrödinger equation with an original approach. Recalling the well-known relation: p→iℏΔr. It considers this equation for which the kinetic factor is EKin=p22M=−ℏ22MΔr2. Mak... The paper deals with a study of the Schrödinger equation with an original approach. Recalling the well-known relation: p→iℏΔr. It considers this equation for which the kinetic factor is EKin=p22M=−ℏ22MΔr2. Making the kinetic factor EKin=−Δr2can be obtained if one defines a mass M=ℏ22, very small and close to the accepted mass of a neutrino νe. The Schrödinger equation reduces to: −Δr2ϕ(r)=Eϕ(r). The energy E is that given by Dirac (1927), (c being the light velocity), with his remark that two solutions exist E=±p2c2+M2c4. The body of this paper shows all solutions obtained when solving the simplified Schrödinger equation. 展开更多
关键词 Schrödinger Equation Planck Constant Particle Physics Neutrino Physics
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Effect of Gravitational Formula Change on Gravitational Anomalies
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作者 Hans Peter Weber 《Journal of Modern Physics》 2024年第11期1632-1645,共14页
The gravitational constant G is a basic quantity in physics, and, despite its relative imprecision, appears in many formulas, for example, also in the formulas of the Planck units. The “relative inaccuracy” lies in ... The gravitational constant G is a basic quantity in physics, and, despite its relative imprecision, appears in many formulas, for example, also in the formulas of the Planck units. The “relative inaccuracy” lies in the fact that each measurement gives different values, depending on where and with which device the measurement is taken. Ultimately, the mean value was formed and agreed upon as the official value that is used in all calculations. In an effort to explore the reason for the inaccuracy of this quantity, some formulas were configured using G, so that the respective quantity assumed the value = 1. The gravitational constant thus modified was also used in the other Planck equations instead of the conventional G. It turned out that the new values were all equivalent to each other. It was also shown that the new values were all represented by powers of the speed of light. The G was therefore no longer needed. Just like the famous mass/energy equivalence E = m * c2, similar formulas emerged, e.g. mass/momentum = m * c, mass/velocity = m * c2 and so on. This article takes up the idea that emerges in the article by Weber [1], who describes the gravitational constant as a variable (Gvar) and gives some reasons for this. Further reasons are given in the present paper and are computed. For example, the Planck units are set iteratively with the help of the variable Gvar, so that the value of one unit equals 1 in each case. In this article, eleven Planck units are set iteratively using the variable Gvar, so that the value of one unit equals 1 in each case. If all other units are based on the Gvar determined in this way, a matrix of values is created that can be regarded both as conversion factors and as equivalence relationships. It is astonishing, but not surprising that the equivalence relation E = m * c2 is one of these results. All formulas for these equivalence relationships work with the vacuum speed of light c and a new constant K. G, both as a variable and as a constant, no longer appears in these formulae. The new thing about this theory is that the gravitational constant is no longer needed. And if it no longer exists, it can no longer cause any difficulties. The example of the Planck units shows this fact very clearly. This is a radical break with current views. It is also interesting to note that the “magic” number 137 can be calculated from the distances between the values of the matrix. In addition, a similar number can be calculated from the distances between the Planck units. This number is 131 and differs from 137 with 4.14 percent. This difference has certainly often led to confusion, for example, when measuring the Fine Structure Constant. 展开更多
关键词 System of Units Planck Constants Gravitational Constant Variable Gravitation Equivalence Relations Number 137
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Refinement of Newton Gravitation Law
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作者 Youqi Wang 《Journal of Modern Physics》 2024年第5期720-763,共44页
According to the theory of general relativity and experiments with atomic clocks in gravitation field, presence of the field shall cause time dilation of clock at rest in the field. This means that the gravitation con... According to the theory of general relativity and experiments with atomic clocks in gravitation field, presence of the field shall cause time dilation of clock at rest in the field. This means that the gravitation constant G is not a true physical constant, but rather a function of the location of the setup in the field when measuring the parameter. This is because the definition of G includes a unit of time, and duration of that time unit is influenced by clock’s location in the field. However, the theory assumes a prior that G shall remain constant in gravitation field, even though this may not be the case. On the other hand, relativistic gravitation phenomena can be derived without contradiction from a refined version of Newton’s law of gravitation that complies with Einstein’s law of mass-energy equivalence. 展开更多
关键词 General Relativity Theory GRAVITATION Planck Constant
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Predicting High Precision Hubble Constant Determinations Based on a New Theoretical Relationship between CMB Temperature and H0
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作者 Eugene Terry Tatum Espen Gaarder Haug Stéphane Wojnow 《Journal of Modern Physics》 2024年第11期1708-1716,共9页
Based on considerable progress made in understanding the Cosmic Microwave Background (CMB) temperature from a deep theoretical perspective, this paper demonstrates a useful and simple relationship between the CMB temp... Based on considerable progress made in understanding the Cosmic Microwave Background (CMB) temperature from a deep theoretical perspective, this paper demonstrates a useful and simple relationship between the CMB temperature and the Hubble constant. This allows us to predict the Hubble constant with much higher precision than before by using the CMB temperature. This is of great importance, since it will lead to much higher precision in various global parameters of the cosmos, such as the Hubble radius and the age of the universe. We have improved uncertainty in the Hubble constant all the way down to 66.8712 ± 0.0019 km/s/Mpc based on data from one of the most recent CMB studies. Previous studies based on other methods have rarely reported an uncertainty much less than approximately ±1 km/s/Mpc for the Hubble constant. Our deeper understanding of the CMB and its relation to H0seems to be opening a new era of high-precision cosmology, which may well be the key to solving the Hubble tension, as alluded to herein. Naturally, our results should also be scrutinized by other researchers over time, but we believe that, even at this stage, this deeper understanding of the CMB deserves attention from the research community. 展开更多
关键词 Hubble Constant CMB Planck Temperature Upsilon Constant
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Upsilon Constants and Their Usefulness in Planck Scale Quantum Cosmology
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作者 Eugene Terry Tatum 《Journal of Modern Physics》 2024年第2期167-173,共7页
This paper introduces the two Upsilon constants to the reader. Their usefulness is described with respect to acting as coupling constants between the CMB temperature and the Hubble constant. In addition, this paper su... This paper introduces the two Upsilon constants to the reader. Their usefulness is described with respect to acting as coupling constants between the CMB temperature and the Hubble constant. In addition, this paper summarizes the current state of quantum cosmology with respect to the Flat Space Cosmology (FSC) model. Although the FSC quantum cosmology formulae were published in 2018, they are only rearrangements and substitutions of the other assumptions into the original FSC Hubble temperature formula. In a real sense, this temperature formula was the first quantum cosmology formula developed since Hawking’s black hole temperature formula. A recent development in the last month proves that the FSC Hubble temperature formula can be derived from the Stephan-Boltzmann law. Thus, this Hubble temperature formula effectively unites some quantum developments with the general relativity model inherent in FSC. More progress towards unification in the near-future is expected. 展开更多
关键词 Quantum Cosmology Hubble Constant Planck Scale Upsilon Constant Flat Space Cosmology Black Holes CMB Temperature ΛCDM Cosmology Quantum Gravity Unification
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A Solution to the Cosmological Constant Problem Using the Holographic Principle (A Brief Note)
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作者 Eugene Terry Tatum 《Journal of Modern Physics》 2024年第2期159-166,共8页
This paper integrates a quantum conception of the Planck epoch early universe with FSC model formulae and the holographic principle, to offer a reasonable explanation and solution of the cosmological constant problem.... This paper integrates a quantum conception of the Planck epoch early universe with FSC model formulae and the holographic principle, to offer a reasonable explanation and solution of the cosmological constant problem. Such a solution does not appear to be achievable in cosmological models which do not integrate black hole formulae with quantum formulae such as the Stephan-Boltzmann law. As demonstrated herein, assuming a constant value of Lambda over the great span of cosmic time appears to have been a mistake. It appears that Einstein’s assumption of a constant, in terms of vacuum energy density, was not only a mistake for a statically-balanced universe, but also a mistake for a dynamically-expanding universe. 展开更多
关键词 Quantum Cosmology Planck Scale Cosmological Constant Black Holes Holographic Principle Flat Space Cosmology AdS-CFT ER = EPR Cosmology Model
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Planck Quantised General Relativity Theory Written on Different Forms
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作者 Espen Gaarder Haug 《Journal of Applied Mathematics and Physics》 2024年第6期2281-2301,共21页
This paper is a brief review of our work on the Planck quantized version of general relativity theory. It demonstrates several straightforward methods to rewrite the same equations that we have already presented in ot... This paper is a brief review of our work on the Planck quantized version of general relativity theory. It demonstrates several straightforward methods to rewrite the same equations that we have already presented in other papers. We also explore a relatively new general relativity-inspired field equation based on the original Newtonian mass, which is very different from today’s kilogram mass. Additionally, we examine two other field equations based on collision space-time, where both energy and matter can be described simply as space and time. We are thereby fulfilling Einstein’s dream of a theory where energy and mass are not needed, or are just aspects of space and time. If this is extended beyond the 4-dimensional space-time formalism of general relativity theory to a 6-dimensional framework with 3 space dimensions and 3 time dimensions, this ultimately reveals that they are two sides of the same coin. In reality, it is a three-dimensional space-time theory, where space and time are just two sides of the same coin. 展开更多
关键词 General Relativity Planck Quantization Compton Frequency Composite Constant G Quantum Gravity Unification Collision Space-Time
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能量天平研究进展 被引量:8
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作者 张钟华 李辰 +7 位作者 贺青 李正坤 韩冰 鲁云峰 兰江 李世松 富雅琼 王刚 《计量学报》 CSCD 北大核心 2014年第4期305-310,共6页
能量天平法已在中国计量科学研究院开展了几年的研究。研究的目的与功率天平法是一致的,即通过测量普朗克常数来建立质量量子基准,但具体方法不同。2010年以来该项研究取得一定进展。例如对于直流互感量测量这一关键问题,已研究出一... 能量天平法已在中国计量科学研究院开展了几年的研究。研究的目的与功率天平法是一致的,即通过测量普朗克常数来建立质量量子基准,但具体方法不同。2010年以来该项研究取得一定进展。例如对于直流互感量测量这一关键问题,已研究出一种新的方波补偿方法,测量不确定度达到10^-7量级(k =1)。还研发了一种涡流传感器,可更准确地对可动线圈定位。线圈系统的准直问题也得到进展,研制了一种油阻尼器,大大减小了由于天平基础振动和线圈加热上升气流引起的线圈抖动。这些措施改善了线圈位置及互感测量的不确定度。测量普朗克常数h 的最新结果为6.626104(59)×10^-34 J·s,综合的相对不确定度为8.9×10^-6(k =1)。对所遇到的困难和进一步的改进措施也在文中进行了讨论。 展开更多
关键词 计量学 千克 SI 单位的重新定义 能量天平 普朗克常数 互感 准直 油组尼
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