density
简明释义
n. 稠密，密集；密度
复 数 d e n s i t i e s
英英释义
The degree of compactness of a substance, typically measured as mass per unit volume. | 物质的紧密程度，通常以单位体积的质量来衡量。 |
A measure of how much matter is contained in a given volume. | 在给定体积中所含物质的量的度量。 |
单词用法
高密度，密度高 | |
电流密度；扩散（弥漫）流密度 |
同义词
| 浓度 | 溶液的浓度影响其反应性。 | ||
| 厚度 | The thickness of the material determines its insulation properties. | 材料的厚度决定了其绝缘性能。 | |
| 紧密度 | 土壤的紧密度影响水分保持。 | ||
| 重量 | He noticed the heaviness of the object indicated a high density. | 他注意到物体的重量表明其密度很高。 |
反义词
| 稀疏 | The sparsity of the population in rural areas can lead to a lack of services. | 农村地区人口的稀疏可能导致服务的缺乏。 | |
| 空虚 | The emptiness of the room made it feel cold and unwelcoming. | 房间的空虚感让它显得寒冷而不友好。 |
例句
1.What you see is near the nucleus that the density is the strongest and that the dots are the closest together.
你看在核子附近，密度最强，这些点在一起最近。
2.The trees weren't replicated, just the wood, specifically the wood's density.
树木没有被复制，只是木材，特别是木材的密度。
3.Jupiter's moon Io, whose density is 3.5 grams per cubic centimetre, is all rock.
木星的卫星木卫一全是岩石，其密度为每立方厘米3.5克。
4.Astronomers know that Pluto and Triton have nearly the same size, mass, and density.
天文学家们知道冥王星和海王卫一拥有几乎相同的体积、质量和密度。
5.Newman notes that Portland has about the same population as Perth and had a similar population density at the time.
纽曼指出，波特兰的人口与珀斯大致相同，而且它们当时的人口密度相近。
6.One of the outer planets, Saturn, has a density of only 0.
土星是外行星之一，它的密度只有0。
7.In physics, we often calculate the density of liquids to understand their properties.
在物理学中，我们常常计算液体的密度以了解其特性。
8.The density of a substance is its mass per unit volume.
一种物质的密度是其单位体积的质量。
9.The density of water is approximately 1 gram per cubic centimeter.
水的密度大约是每立方厘米1克。
10.The population density of this city is increasing rapidly.
这个城市的人口密度正在迅速增加。
11.High density materials are often used in construction for their strength.
高密度材料常用于建筑，因为它们的强度。
作文
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