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单词
particulate matter
释义
particulate matter
n.
(名词)
abbr.
PM
【缩写】
Material 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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更新时间:2026/6/18 11:57:48