| 单词 | unit volume |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔absolute humidity〕The amount of water vapor present in a unit volume of air, usually expressed in kilograms per cubic meter.绝对湿度：单位大气中水汽的含量，通常用千克/每立方米表示美国传统〔charge density〕The electric charge per unit area or per unit volume of a body or of a region of space.电荷密度：一物体单位体积、面积或一空间内的电荷量美国传统〔density〕The mass per unit volume of a substance under specified conditions of pressure and temperature.比重：在特定压力和温度条件下某物质单位体积的质量美国传统〔energy density〕The energy per unit volume of a region of space.能量密度：每单位体积的能量美国传统〔heat of combustion〕The amount of heat released per unit mass or unit volume of a substance when the substance is completely burned.燃烧热：每单位质量或体积的物质完全燃烧后所释放出的热量美国传统 |
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