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Research Progress on Extraction, Purification, Composition and Pharmacological Action of Tea Polysaccharides
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作者 LIUYufeng WANGYouqiang 《外文科技期刊数据库(文摘版)自然科学》 2022年第4期180-183,共4页
Southern geology is more suitable for tea cultivation. Therefore, it is necessary for research staff to collect information, explore the actual situation of local people, understand the suitable environment for tea cu... Southern geology is more suitable for tea cultivation. Therefore, it is necessary for research staff to collect information, explore the actual situation of local people, understand the suitable environment for tea cultivation, correctly select the appropriate tea varieties, enhance the income of local residents from tea cultivation, promote local economic development, and contribute to the improvement of regional and individual economic level. This paper mainly discusses the cultivation management measures and key cultivation techniques of southern tea, understands the specific situation of management measures and analyzes the key cultivation techniques, in order to provide a certain reference value. 展开更多
关键词 southern tea cultivation management measures cultivation technology key points of research
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Discussion on the Installation Technology and System Debugging of Ventilation and Air Conditioning
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作者 JIANG Hao 《外文科技期刊数据库(文摘版)工程技术》 2021年第7期232-234,共5页
Ventilation and air conditioning installation is a construction project in the later period of construction engineering, and its construction quality directly affects the office comfort of the building, so we must pay... Ventilation and air conditioning installation is a construction project in the later period of construction engineering, and its construction quality directly affects the office comfort of the building, so we must pay attention to the quality control of ventilation and air conditioning installation. Based on this, the paper studies the key points of quality control of ventilation and air conditioning installation, elaborates from three aspects of process preparation before construction, material preparation before construction and quality control points during construction, in order to provide reference for workers in the industry. 展开更多
关键词 ventilation and air conditioning installation quality control key points research
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