结论表明，在现有工艺条件下，控制合适的工艺参数可批量生产Y45S20易切钢。

Reach a conclusion, in now available technological condition, control suitable technological parameter so will produce batch Y45S20 free-cutting steel.

youdao

结论表明，在现有工艺条件下，控制合适的工艺参数可批量生产Y45S20易切钢。

Reach a conclusion, in now available technological condition, control suitable technological parameter so will produce batch Y45S20 free-cutting steel.

youdao