mass variation 质量变化
mass concentration variation 质量浓度变化
variation of relative mass 相对质量变化
coefficient on variation of mass 质量CV
variation of biomass mass concentration 微生物质量浓度变化
Results indicate that a significant degree of control over the ride characteristics can be achieved in a wide range of load mass variation.
结果表明：在负载质量变化较大的范围内，能相当大程度地控制悬挂系统行驶特性。
At the same time, it is also the variation of western theory of mass in China, especially the result of complete overthrow of mass value judgment.
同时，它也是西方群众理论在中国的变异，特别是对群众价值评判彻底颠覆的产物。
The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
将传质方程引入到垂直管降膜蒸发传热模型中，求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。
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