| 释义 |
NOUN. 名词1.?[C, U 有变体名词] （表明某物或某地所容纳物体数量多少的）密度Density is the extent to which something is filled or covered with people or things. 双语例句例： The region has a very high population density. 这一地区人口密度很高。 例： a law which restricts the density of housing. 一部限制住房密度的法律。 2.?[C, U 有变体名词] （体现物体质量与体积关系的）密度In science, the density of a substance or object is the relation of its mass or weight to its volume. 双语例句例： Jupiter's moon Io, whose density is 3.5 grams per cubic centimetre, is all rock. 木星的卫星木卫一密度为每立方厘米3.5克，其上岩石遍布。 例： assessing the temperature, heat capacity, density and hardness of Mercury's surface. 评估水星表面的温度、热度、密度和硬度。
|