我并不是说，那些单个的粒子没有，持续改变动量。
I'm not saying that the individual particles do not continuously experience momentum changes.
公差是零件允许的变动量或给定尺寸允许的总变动。
Tolerance is the amount of variation permitted in the part or the total variation allowed in a given dimension.
用人单位调查被认为是测量岗位逐月变动量更可靠的方法。
The establishment survey is considered a more reliable measure of month-to-month job changes.
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