The difference between amount per unit volume and bulk density of refractory castable in definition is pointed out, a testing method of amount per unit volume of refractory castable is introduced.

指出了耐火浇注料单位体积用量与体积密度定义上的区别，介绍了一种测试耐火浇注料单位体积用量的试验方法。

youdao

So, the divergence itself measures basically the amount of sources or sinks per unit volume in a given place.

散度本身度量了，给定区域的,单位体积内的冒出的，或者流失的量。

youdao

It is the amount of electric charge per unit volume.

是电荷与体积的比值。

youdao

By roughly 2008, carbon microfilament capacitive storage devices were able to match the amount of energy stored per unit volume and per unit weight that chemical batteries were capable of.

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