单词relative density
un.: 相对密度；比重
网络: 相对密实度；致密度；相对密度试验
相对密度:
the mass of a substance divided by the mass of the same volume of water or air
比重
相对密度
Generally, gemologists refer to specific gravity, or relative density -- the ratio of the density of a gemstone relative to that of water.
一般来说，宝石指比重，或相对密度-宝石的密度相对于水的密度。
Given the relative density of the city and its surroundings it seems unusual that these have been left unused for so long.
鉴于纽约城及其周边城市的人口密度，这些飞地被这样长时间的闲置，实在是很奇怪的事。
With the increase of the sintering holding time, the relative density of the compacts hardly increases, but the hardness could be improved.
同时发现保温时间对烧结体的相对密度影响不大，但硬度随保温时间的延长而增大。
the higher the initial relative density, the lower the yield strength of the material, and the earlier the time of break occurred.
初始相对密度越大，材料屈服强度越低，出现破裂的时间越早。
Results After clarification by chitin, the relative density and the total solids content declined slightly, but the difference was small.
结果甲壳素澄清后相对密度、总固体物含量略有下降，但差异不大。
Especially, the uniformity of the compacts" relative density obviously improves under special lubrication condition.
尤其是采用特殊润滑时，生坯密度均匀性得到了明显的改善。
This paper introduced the physical and chemical characteristics of supercritical fluids including relative density, viscosity and . . .
介绍了超临界流体的密度、粘度、扩散系数等物理化学性质及其对化学反应的影响。
With tile correlation equation, the densimetric determination could replace the standard method to determine the relative density of flavor.
通过回归方程，可以用密度仪法代替标准法来测定香精的密度。
Bearing capacity increases and deformation decreases when failing down with the relative density increasing.
钙质砂的承载力随着相对密实度的增大而增大，破坏时的变形量显著减小；
To the same material, with increasing relative density, the yield stress increased and yield region decreased.
同一种材料的泡沫金属，其屈服应力随相对密度增大而增大，平台区相应变窄。