曲轴箱缸体是汽车中最大、·最复杂的金属件，一般由优质合金铸铁制成，以增强其耐磨性。

They are usually made of high-grade cast alloy iron to improve wear characteristics of the cylinder.

youdao

曲轴箱缸体是汽车中最大、·最复杂的金属件，一般由优质合金铸铁制成，以增强其耐磨性。

They are usually made of high-grade cast alloy iron to improve wear characteristics of the cylinder.

youdao