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1)  conformational element
构象因素
1.
In fact the conformational element is a space element.
构象因素实际上是一个空间因素,它明显地影响着有机反应活性,本文探讨了构象因素对有机反应活性的影响。
2)  meteorological factor
气象因素
1.
The effect of meteorological factors in drought area on epidemic situ ation of common Infectious diseases;
干旱地区气象因素对常见传染病疫情影响的研究
2.
Effect of meteorological factors on sprout of young walnut trees and their control measures;
气象因素对核桃幼树抽条的影响及防止措施
3.
Analysis of impact of the meteorological factor of 2003 on Xinyang rice output;
2003年气象因素对信阳水稻产量的影响分析
3)  Meteorological factors
气象因素
1.
The model of back-propagation neural network about meteorological factors and epidemic cerebrospinal meningitis;
流行性脑脊髓膜炎与气象因素关系的BP神经网络模型研究
2.
Effect of meteorological factors on epidemic situation of aspiratory infectious diseases in drought area;
干旱地区呼吸道传染病气象因素及发病预测
3.
Study of the relationship between meteorological factors and cerebral vascular disease;
气象因素与脑血管病关系的研究
4)  climate factors
气象因素
1.
To study the interaction between some climate factors and air negative ions (ANI) surrounded by the fountain,temperature,relative humidity,wind velocity,atmosphere and concentration of ANI in the environment of 2 fountains in Shanghai were investigated every 15 minutes from 9:30 to 17:00 for 8 days in total.
研究了由喷泉产生的大量空气负离子同局部气象因素之间的关系 。
2.
This research observed the occurrence extent of powdery mildew of flax during the growth of flax at certain period and position,analyzing by temperature,humidity,illumination of climate factors and different seed density influences on the occurrence and development extent of and the different seed periods powdery mildew of flax.
在亚麻生长季节定期定点观察亚麻白粉病发生程度,分析温度、湿度、光照等气象因素及不同播种密度和不同播期对亚麻白粉病害发生发展规律的研究。
5)  weather factor
气象因素
1.
Application of weather factor-considered SVM method to short-term load forecast;
考虑气象因素的SVM方法在短期电力负荷预测中的应用
2.
Weather factor′s influence on the photoelectric jamming performance for artificial fog;
气象因素对人造雾光电干扰效果的影响
3.
The method to separate fire source index from weather factors is used to establish the equation of urban fire early warning The changes in fire source index from 1991 to 1996 in Nanjing are analyzed It indicates that urban fire source indexes change with season, year, structure and scale of a city and fire preventing measure
提出将环境气象因素与火源综合指数分离的方式建立城市火险预警方程的方法 ,并分析讨论了南京市 1991~ 1996年的火源综合指数的变化特征。
6)  climatic factor
气象因素
1.
Impact of Climatic Factors over Fat Content in Soybean of Huanghuaihai Region;
气象因素对黄淮夏大豆脂肪含量影响的研究
2.
Objective: To examine the influence of the changes of climatic factors on the occurrence of intracerebral hemorrhage (ICH) in residents.
目的探讨气象因素变化对居民脑出血发病的影响。
3.
Objective To study the relationship between climatic factors and the outbreak of respiratory tract and digestive tract infectious diseases.
目的研究云浮市气温、相对湿度、气压等气象因素对传染病发生的影响。
补充资料:船式构象和椅式构象
      按照碳原子具有正四面体构型的学说,环己烷分子中的六个碳原子在键角(109.5°)保持不变的情况下,可以两种不同的空间形式,组成六元环,称为环己烷的船式构象和椅式构象 (图1)。根据现代分子结构理论,由于基团的相互作用的缘故,椅式构象比船式构象稳定得多,常温下环己烷几乎完全是椅式构象。
  
  通过船式构象的纽曼投影式(图2),可以看到碳原子1、2、4、5上相连的氢原子都处在全重叠式的位置上。从船式构象的透视式可以看到碳原子3和6(或称船头和船尾碳原子)上的两个向环内伸展的氢原子相距较近。上述两种情况都使氢原子之间产生较大的斥力,从而产生一种使船式构象扭转为椅式构象的内在力量,这种力称为扭转张力。这是船式构象不稳定的根本原因。在椅式构象中,组成碳环的任何相邻的两个碳原子上的氢,彼此都处在交叉式的位置上(图3),它们之间无扭转张力,比较稳定。
  

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