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   English ⇄
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particles per cubical centimeter
tech. 每立方厘米的粒子数
particles per cubic centimeter
earth.sc. 每立方厘米颗粒数空气中的尘末
tech. 每立方厘米的粒子数
 English thesaurus
particles per cubic centimeter
abbr., mining. p.p.c.c.

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