结论蚊、蝇、鼠密度除个别区、县较高，超出杀虫参考指标以外，总体密度较低。

Conclusion the overall density of mosquitoes, flies and rats was generally low, despite a few districts where the density exceeded reference indexes.

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本文提出了一种从镏分恩氏蒸馏数据和总体密度对石油馏分进行假组分切割和物性估算的方法。

A characterization approach for petroleum fractions based on the ASTM distillation data and the overall density has been proposed.

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尽管它只占太阳总体积的2%，但其密度可达铅的16倍，并占有差不多一半的太阳质量。

Although it only makes up roughly 2 percent of the sun's volume, it is almost 15 times the density of lead and holds nearly half of the sun's mass.

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