1)mass fraction,质量份额，质量比2)the quality of market shares,市场份额质量3)mass limit,质量限额4)mass yield,质量产额5)mass flow ratio,质量量比6)proportion by weight,质量配比
用法例句
The results show that the joint strength is higher when the proportion by weight of the composition of glue A and glue B is 3:1; and at the same proportion, the shear strength is the highest when the solidification time is over 10 h.
