The carbon contents and microstructure in the boundary of effective hardening layer were also discussed.

研究了有效硬化层分界处的碳含量及显微组织特征。

youdao

The carbon contents and microstructure in the boundary of effective hardening layer were also discussed.

研究了有效硬化层分界处的碳含量及显微组织特征。

youdao