ration of weight是什么意思

用法例句

The experiment results show that weight specific energy of the light lead-acid batteries prepared is able to reach 45Wh/kg, and the use of hole-pressed grid eroded by electrochemical method is the important creative point.

通过改进电池电极的结构、材料与制造工艺，提高了铅酸蓄电池的重量比能量和大倍率放电性能。