中文翻译与英英解释

【化学】定时取集的样品。

grab:    vt. (grabbed; grabbing) 1.攫取 ...

sample:    n. 1.样品，货样。 2.标本；榜样，实例。 3.【统 ...

a single sample or measurement taken at a specific time or over as short a period as feasible