英语词汇variable mass怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	variable mass
释义	variable mass 简明释义变质量网络释义短语 1 variable mass system 物变质量系统 ; 物变质量系 2 variable mass mechanics 变质量力学 3 variable-mass dynamics 变质量动力学双语例句 1 The law of variable mass motion of a soft rope is studied. 研究了一种变质量柔绳上升和下降的运动规律。 2 The conservation laws of relativistic variable mass systems were studied. 研究相对论性变质量系统的守恒律。 3 In this paper, variable mass controllable mechanical systems are investigated. 本文研究一类变质量可控力学系统。
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