Three stages of reform of collective forest tenure after reform and opening up are reviewed.The reform of forest tenure brings sharp increase of economic benefit.However,due to forest farmers'subjective pursuit fo...Three stages of reform of collective forest tenure after reform and opening up are reviewed.The reform of forest tenure brings sharp increase of economic benefit.However,due to forest farmers'subjective pursuit for economic benefit and objective lack of necessary economic,financial and technical support,ecological hidden troubles are created.Based on these,we put forward countermeasures,including strengthening forest farmers'awareness of ecological protection and solving ecological problems in accordance with actual conditions of the region.展开更多
The 10kV distribution line is the core component of the power system, and the probability of failure is relatively high. Once the failure occurs, it will cause a large-scale power outage. At present, in the operation ...The 10kV distribution line is the core component of the power system, and the probability of failure is relatively high. Once the failure occurs, it will cause a large-scale power outage. At present, in the operation of China's power system, 10kV distribution line power cable faults occur frequently, which have a negative impact on the stability of the power system. The troubleshooting and prevention of 10 kV distribution line power cable faults are always the focus of the power sector.展开更多
When his now unpopular war against Iraq entered its fifth year on March 20, it was actually only one of U.S. President George W. Bush’s various headaches. After his protest-rich Latin American tour in mid-March, Bush...When his now unpopular war against Iraq entered its fifth year on March 20, it was actually only one of U.S. President George W. Bush’s various headaches. After his protest-rich Latin American tour in mid-March, Bush returned home to a string of展开更多
A kind of management system for electric vehicle (EV) battery series was developed. The system can predict residual capacity for EV battery series and mileages. The system can determine if it is necessary for the batt...A kind of management system for electric vehicle (EV) battery series was developed. The system can predict residual capacity for EV battery series and mileages. The system can determine if it is necessary for the battery series to be charged. The system can determine which battery is necessary to be updated for the reason of damage or aging. The system can display the total voltage of battery series, extreme voltage and temperature of every battery in the series. The system can display the accumulative discharge for every battery in the series. The system can alarm when both total or extreme voltage is at low level, or temperature of a battery in the series is at high level. The system provided with a microprocessor as key part can collect and record signal of charging and discharging current, total voltage, extreme voltage and temperature for every battery. The mathematical model of residual capacity for EV lead acid batteries was discussed in details. The system operates well in the laboratory and meets the requirement.展开更多
The paradox of our time in history is that: We have taller buildings, but shorter tempers; Wider freeways, but narrower viewpoints ; We spend more, but have less; We buy more, but enjoy it less; We have bigger houses ...The paradox of our time in history is that: We have taller buildings, but shorter tempers; Wider freeways, but narrower viewpoints ; We spend more, but have less; We buy more, but enjoy it less; We have bigger houses and smaller families ; More conveniences, but less time; We have more degrees, but less sense;展开更多
在美国英语中,有好多习语是和 shirt 有关的。请看下面这段话:So take my advice.“Keep your shirt on”andstay away from“stuffed shirts”.If you are unluckyenough to“lose your shirt”,“roll up your shirt-
第一部分:听力(略) 第三部分:英语知识运用第一节:单项填空从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。21.- May I take your order now?- Ok, I’ll come back in a few minutes. A. No, not yet. ...第一部分:听力(略) 第三部分:英语知识运用第一节:单项填空从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。21.- May I take your order now?- Ok, I’ll come back in a few minutes. A. No, not yet. We need more time.展开更多
基金Supporte by Special Funds for Scientific Research of Forestry Public Welfare Industry"Technical Research and Demonstration for Ecological Environmental Protection of Wild Fauna and Flora Based on Forest Tenure Reform"(200904003)
文摘Three stages of reform of collective forest tenure after reform and opening up are reviewed.The reform of forest tenure brings sharp increase of economic benefit.However,due to forest farmers'subjective pursuit for economic benefit and objective lack of necessary economic,financial and technical support,ecological hidden troubles are created.Based on these,we put forward countermeasures,including strengthening forest farmers'awareness of ecological protection and solving ecological problems in accordance with actual conditions of the region.
文摘The 10kV distribution line is the core component of the power system, and the probability of failure is relatively high. Once the failure occurs, it will cause a large-scale power outage. At present, in the operation of China's power system, 10kV distribution line power cable faults occur frequently, which have a negative impact on the stability of the power system. The troubleshooting and prevention of 10 kV distribution line power cable faults are always the focus of the power sector.
文摘When his now unpopular war against Iraq entered its fifth year on March 20, it was actually only one of U.S. President George W. Bush’s various headaches. After his protest-rich Latin American tour in mid-March, Bush returned home to a string of
文摘A kind of management system for electric vehicle (EV) battery series was developed. The system can predict residual capacity for EV battery series and mileages. The system can determine if it is necessary for the battery series to be charged. The system can determine which battery is necessary to be updated for the reason of damage or aging. The system can display the total voltage of battery series, extreme voltage and temperature of every battery in the series. The system can display the accumulative discharge for every battery in the series. The system can alarm when both total or extreme voltage is at low level, or temperature of a battery in the series is at high level. The system provided with a microprocessor as key part can collect and record signal of charging and discharging current, total voltage, extreme voltage and temperature for every battery. The mathematical model of residual capacity for EV lead acid batteries was discussed in details. The system operates well in the laboratory and meets the requirement.
文摘The paradox of our time in history is that: We have taller buildings, but shorter tempers; Wider freeways, but narrower viewpoints ; We spend more, but have less; We buy more, but enjoy it less; We have bigger houses and smaller families ; More conveniences, but less time; We have more degrees, but less sense;
文摘在美国英语中,有好多习语是和 shirt 有关的。请看下面这段话:So take my advice.“Keep your shirt on”andstay away from“stuffed shirts”.If you are unluckyenough to“lose your shirt”,“roll up your shirt-
文摘第一部分:听力(略) 第三部分:英语知识运用第一节:单项填空从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。21.- May I take your order now?- Ok, I’ll come back in a few minutes. A. No, not yet. We need more time.
