Thee Ministry of Environmental Protection's newly published air qualitystandard includes monitoring of PM2.5 - a kind of air particle with a diameterof 2.5 microns or less.
环保局新近发布的空气质量标准包括了PM2.5的监测测——PM2.5是一种直径等于或小于2.5微米的空气颗粒。
Thee Ministry of Environmental Protection's newly published air qualitystandard includes monitoring of PM2.5 - a kind of air particle with a diameterof 2.5 microns or less.
环保局新近发布的空气质量标准包括了PM2.5的监测测——PM2.5是一种直径等于或小于2.5微米的空气颗粒。
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