particulate matter
短语颗粒物质
词形变化
particulate matters
复数
particulate matters
别名
PM
释义与例句
n.
-
1.
Any solid or liquid in a finely subdivided state, especially when considered as an atmospheric pollutant.
悬浮微粒
颗粒物
悬浮粒子
可数 不可数