除了统计浓度值的算术平均值外，还应统计出主要风向下的浓度值，为大气预测提供本底数据。

Then besides counting up, it should count up the loading values of cardinal wind as the background data for atmospheric forcast.

youdao

除了统计浓度值的算术平均值外，还应统计出主要风向下的浓度值，为大气预测提供本底数据。

Then besides counting up, it should count up the loading values of cardinal wind as the background data for atmospheric forcast.

youdao