Mass per unit of volume in powder form, including the air trapped between the particles.
每单位体积粉末的质量，包括粒子之间的空气。
A unit of alcohol is a 125ml glass of wine at about 8% alcohol by volume.
以125毫升、酒精浓度为8%的酒为一个单位来计算。
It is the amount of electric charge per unit volume.
是电荷与体积的比值。
A unit of measurement of volume or capacity.
测量体积或容积的单位。
In physics it is an identification of material by noting its mass per unit volume.
在物理学上，是以每单位体积的质量来鉴别物质。
Field capacity is a property of a unit volume of soil.
野外容水率是单位土体的一种特性。
Field capacity is a property of a unit volume of soil.
野外容水率是单位土体的一种特性。
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