characteristic condition point的意思|示意

In narrating the base of idea and characteristic of non-point pollution, the existing condition of model research of non-point pollution in agricultural environment at home and abroad is discussed.

在阐述非点源污染的概念、特点的基础上，对国内外农业环境非点源污染模型研究现状进行了综述。

Finally, imaging simulation of point target in the condition of antenna micro-motion is done. Imaging results before and after compensation are compared combined with imaging characteristic.

最后在天线微动条件下对点目标进行了成像仿真，并结合成像特征对天线微动补偿前后的结果进行了分析比较。