1)mass equivalent,质量当量2)equivalent quality,当量质量3)nominal mass,相当质量4)mass-energy equivalent,质量-能量当量5)energy mass equivalence,能量质量当量6)mass energy equivalence,质能相当量
英汉例句
Taking impact as an example this paper has analysed nominal mass of deter- minate beams by the energy method.
