active mass meaning in English

活动质量
活性物质
有效质量

And it is well known that the non - uniform current and potential distributions on the plate can obviously affect the active mass utilization , especially for the positive plate
而且极板上不均匀的电流和电位分布会明显影响活性物质的利用率,尤其是正极板。
This dissertation focuses on the active control , which uses active control device such as active mass damper to enhance the performance of the structures during earthquakes and strong winds
主动和半主动控制装置能够增强建筑结构在地震和大风作用下的抗振性能，因此研究适合这些装置的控制策略具有重要意义。
This dissertation analyses technical requirements and the circulation mechanism of electric bicycle batteries , introduces the processing and related data of the development of the electric bicycle batteries . the test results show that the batteries can meet the requirements by using the highly purified lead - tin alloy , the active mass containing conductive material and the green plate curing a thigh temperature
分析了电动自行车用电池的技术要求和循环机理,介绍了研制电动自行车用电池的过程,结果表明,使用高锡合金、活性物质中添加导电剂、生极板采用高温固化工艺,电池性能达到了电动自行车用电池的技术要求。