单词surface density
un.: 表面密度
网络: 表面积密度；地表密度；表面路线密度
表面密度
They discovered that star formation is pretty well non-existent until the surface density reaches a certain threshold in parts of the cloud.
他们发现恒星只有在表面密度达到一定的阀值时才会较好的形成。
In addition, the growth of cells was found to be affected by the surface density of immobilized heparin.
此外，细胞的生长被认为是受影响的面密度固定肝素。
The formation of this change is caused by energy deposition and the surface density of volcano eruption.
形成这一变化的原因是由能量沉积与火山坑的面密度共同作用的结果。
Above that threshold, the SFR increases linearly with that surface density.
高于阀值时，SFR随表面密度线性增长。
Their antistatic performances were determined using methods of electrification voltage by friction and surface density of charge.
采用摩擦起电电压法和电荷面密度法，对其进行了抗静电性能测试。
Four mean factors which include yarn fineness, fabric structure, porosity, thickness and surface density may effect the mesh properties.
阐述了可能影响修补网质量的四个主要因素：纱线线密度、织物结构、孔隙率、织物厚度和面密度。
At maturity, lungs were excised and quantitative histology performed to measure alveolar air fraction and surface density.
在到期时，肺切除和定量组织学表现来衡量的一小部分肺泡的通气量和表面密度。
Numerical density and surface density of CA3 were significantly increased; however, the mean profile area of synapse was decreased.
CA3区突触数密度、面密度较对照组同样明显增高，而突触连接带平均面积明显减小。
Cortical porosity and micro canal surface density are different between 2D calculation and 3D measurement.
二维推算与三维模型直接测量得到的孔隙率、微管表面积密度不同。
In duct outside wall surface density according to choose the uniform paste insulation cotton nail, usually every square metre 8-12.
在风管外壁根据选用的面密度均匀粘贴保温棉钉，一般情况下每平方米8-12个。