单词 | particulate matter |
释义 | particulate matter particulate matter n.Abbr. PM(名词)缩写 PMMaterial suspended in the air in the form of minute solid particles or liquid droplets, especially when considered as an atmospheric pollutant.粒状物质:悬浮于空气中以固体或液体微分子状存在的物质,尤指大气污染物 |
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