76例120颗牙齿根分叉区病变的临床分析 关键词】脓肿;趋势;浓度;牙髓炎 [gap=550]Key word】abscess;Tendency;Density;Endodontitis
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keyword density 关键词密度 ; 关键字密度 ; 关键字词密度 ; 要害词密度
energy density [物] 能量密度 ; 能量密度 ; 能密度 ; 储能密度
Bulk density 堆积密度 ; [物] 体积密度 ; [力] 体密度 ; [物化] 堆密度
column density 柱密度
spectral density [物] 谱密度 ; 谱线密度 ; [光] 频谱密度
linear density [建] 线密度 ; 线形密度 ; 沿线密度 ; 纤维线密度
density matrix [理物] 密度矩阵 ; 密度行列 ; 密度方阵 ; 密度陡度
Density contrast 密度差 ; [摄] 密度反差 ; 密度差异对照
optical density [光] 光密度 ; 光学深度 ; 光密度值
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N-VAR Density is the extent to which something is filled or covered with people or things. 密度
The region has a very high population density.
这一地区人口密度很高。
N-VAR In science, the density of a substance or object is the relation of its mass or weight to its volume. 密度 [技术]
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。
The region has a very high population density.
这一地区人口密度很高。
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。
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。
The study is said to be the first to examine in detail measurements of bone strength instead of bone density.
VOA: special.2009.03.10
We can graph out what this is where we're graphing the radial probability density as a function of the radius.
我们可以,画出它来,这是径向概率密度,作为半径的一个函数图。
It's one of the only compounds, there's only I think three, where the density actually goes down when it freezes.
它是我见过的,唯一一个,在降温时密度下降的化合物。
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