齿轮激光淬火有效硬化层深的取值到目前为止没有统一的标准，这对该项技术的推广应用十分不利。

There is not standard about the available hardened depth of laser quenching gears, which is disadvantage to its application.

youdao

齿轮激光淬火有效硬化层深的取值到目前为止没有统一的标准，这对该项技术的推广应用十分不利。

There is not standard about the available hardened depth of laser quenching gears, which is disadvantage to its application.

youdao