The content of chlorophyll were less influence by density, but showed a tendency of increase with the increase of nitrogen fertilizer mount from the seedling period to the grain filling period.
叶绿素含量受密度影响较小，随着氮肥的增加从苗期到灌浆期呈现增加趋势。
The sensible heat showed a tendency of increase from spring to summer, but the change of latent heat was similar to precipitation in different development phases of crop and showed a figure of a wave.
从春季到夏季，感热的阶段变化表现为增加的趋势，而潜热的阶段变化与晴天前期的降水变化基本一致，呈波动趋势。
With the increase of the flue gas temperature, the efficiency of desulphurization showed a decreased tendency.
随烟气温度的升高，脱硫效率表现出减少的趋势。
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