直射光的透过率随着叶面积系数增大而减小，夏半年大于冬半年。
The transmissivity of summer half year is larger than winter half year.
冬半年经常发生连阴天气和寒潮天气，严重影响了蔬菜的质量和产量。
Serial cloudy sky and cold wave in cold half year brings about a greater impact on the quality and yield of vegetable.
通过对感冒与冷空气活动过程的分析，找出了冬半年中的感冒高发期。
It is found that the favorable incidence of common cold in winter.
南沙和西沙海面吸收短波辐射年周期特征明显，极大值出现在冬半年。
The characteristics of the annual period of absorbing shortwave radiation on sea surface are remarkable in Nansha and Xisha, with the maximum appearing in the winter-half year.
冬半年大气对赤道东太平洋海温的响应表现为不同于pna的呈纬向分布的模态结构。
The wintertime Northern Hemisphere atmospheric response to SST in EEP is the zonal mode structure which is different from PNA.
本文对于北京冬半年近地面层湍流的特性：湍流系数及湍流热通量等，用各种方法进行计算和比较。
In this paper, some characteristics of turbulent exchange in surface layer, the austausch coefficient, heat flux transfer, etc.
对冬、夏半年序列分别分析的结果与全年序列分析的结果并无显著差别。
The results from the winter or summer half year daily series are similar to those from the daily series of an entire year.
对冬、夏半年序列分别分析的结果与全年序列分析的结果并无显著差别。
The results from the winter or summer half year daily series are similar to those from the daily series of an entire year.
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