名词
中文翻译：密度
同义词：
['mass', 'weight', 'heaviness例句：1. The liquid has a density of 0.9 g/cm³.（液体的密度为0.9 g/cm³。）']
例句：
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1. The liquid has a density of 0.9 g/cm³.
液体的密度为0.9 g/cm³。
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2. The density of the soil is affected by its moisture content.
土壤的密度受其含水量的影响。
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3. The density of the water increases with temperature.
水的密度随温度升高而增加。