对轿车发动机缸体的材质和加工性进行了实验研究。

The structure, property and machinability of materials of sedan-car engine block was tested and studied.

youdao

对轿车发动机缸体的材质和加工性进行了实验研究。

The structure, property and machinability of materials of sedan-car engine block was tested and studied.

youdao