虚质量，虚质量的问题出现在超光速方面，由爱因斯坦的质速关系式m=m0/√[1-（v^2/c^2）]，可得当粒子速度超过光速时，质量就变成了虚数。
进而应用瑞利方法得到了薄板水中振动频率与真空中振动频率、无量纲附加虚质量增量之间的关系。
Then the relationship among vibration frequency of the plate in water and that in vacuo and the Nondimensionalized Added Virtual Mass Incremental (NAVMI) is obtain by utilizing Rayleigh method.
银行发放质量欠佳的按揭贷款，想办法以虚高价格售予毫不知情的投资者，将风险转嫁给他人，从中牟利。
A bank takes weak mortgages and finds a way to sell them for more money to unsuspecting investors, passing the risk onto others while making a profit.
虚证患者的生活质量低于实证患者。
Deficiency syndrome had lower life quality than excess syndrome did.
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