It is standard in almost all types of engines and it makes the crankcase between the ball bearings more stiff.

这是标准的，在几乎所有类型的发动机，这使曲轴箱之间的球轴承更激烈。

youdao

It is standard in almost all types of engines and it makes the crankcase between the ball bearings more stiff.

这是标准的，在几乎所有类型的发动机，这使曲轴箱之间的球轴承更激烈。

youdao