To improve the efficiency of physical teaching, we have to put emphasis on the analysis and utilization of particular factors in physical teaching.
努力改进和提高体育课的教学效率，就必须加强体育课具体教学要素的分析与运用。
The results of genetic cluster analysis of N utilization efficiency showed that 137 wheat parents could be divided into three types.
小麦亲本氮素利用效率的遗传聚类分析，将137个小麦亲本分为三类。
Then Taking Shan Dong province as an example, through the analysis of land use comparative advantage, land utilization efficiency, to find out the law of the course land conversion.
本文采用理论分析与定量研究相结合的方法探寻了山东省农地非农化过程中土地利用效率变化趋势，分析其产生原因并给以相关政策建议。
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