钢球的磨斑直径分别下降了46.5%、45.6%和32.5%;

钢球的磨斑直径分别下降了46.5%、45.6%和32.5%;的英文翻译

基本释义

• the diameter of worn spot of steel ball decrease of 46.5%25,45.6%25 and 32.5%25 respectively.