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U型桥台设计施工中几点问题的探讨 被引量:3
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作者 张宝魁 马清珍 《河北工程技术高等专科学校学报》 2004年第4期22-25,共4页
文中简单讨论了影响混凝土U型桥台质量的几种因素,包括因不均匀沉降等因素产生裂缝、桥台前移、温度裂缝和施工缝以及在设计方面存在的问题等,并给出了相应的解决方案,同时结合工程实例进行了阐释。
关键词 U型桥台 害病原因 解决方案
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Analysis of Disease Influence on the Flue-cured Tobacco During the Growth and Development Period of Enshi in 2014 被引量:1
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作者 望胜玲 丁才夫 +1 位作者 张英 望晶晶 《Agricultural Science & Technology》 CAS 2015年第6期1259-1263,1275,共6页
The growth of flue-cured tobacco can be significantly influenced by the temperature, sunlight, water, etc. The paper presents and analyzes the details of the disease influence on the flue-cured tobacco during the grow... The growth of flue-cured tobacco can be significantly influenced by the temperature, sunlight, water, etc. The paper presents and analyzes the details of the disease influence on the flue-cured tobacco during the growth and development period in the high-mountainous and the middle-mountainous regions of Enshi based on the detailed climatolgical data. The results demonstrate that the most important climatic factors affecting the growth and development of flue-cured tobacco contain low temperature, even rainy, lack of sunlight and low evaporation. The deterious ef-fects in the high-mountainous region, the heavy fog region and the flat ground are more serious compared with the middle- and low-mountainous regions, the light fog region and the sloping field, respectively. Furthermore, in order to reduce the deteri-ous effects, helpful countermeasures are proposed favoring the growth and produc-tion of the flue-cured tobacco. 展开更多
关键词 Growth of flue-cured tobacco Influence and analysis DISEASE
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