These techniques general work fast, cost inexpensive, and do not need large-volume unit, so they have a good large potential in extensive pesticide residue monitoring and spot assays.

上述技术的共同特点是，一般不需大型设备、检测快速、成本低，因此，在大规模农药残留监测和实时现场检测方面具有广泛的应用前景。

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Because these galaxies' mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies.

因为这些星系的质量分布在更大的区域，它们每单位体积的恒星数量比传统星系要少得多。

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Those include uncovering how bubble growth rates vary with the number of bubble sides and minimizing the surface area per unit volume.

比如探究气泡生长速率如何随气泡面的数目变化而变化，以及单位容量内使表面积最小化。

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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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Unit volume shipments of these products, particularly for video work, are expected in 2012 and that will drive the unit costs down.

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Both of these trends will contribute to slowing unit volume among a price conscious consumer market.

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