mass-variation 变质量
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
The land quantity, the mass variation are remarkable also the existence obvious region difference.
质量 变化显著且存在明显的区域差异。
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。
The EQCM studies provide quantitative results of surface mass variation and have thrown new light in the elucidating isopropanol oxidation.
EQCM研究还从电极表面质量定量变化的角度提供了异丙醇吸附和电氧化反应机理的新数据。
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