At present, the design for Super Micro Mill at home lacks certain theoretical basis.

目前，国内对机械冲击式超细粉碎机的设计缺乏一定的理论依据。

youdao

At present, the design for Super Micro Mill at home lacks certain theoretical basis.

目前，国内对机械冲击式超细粉碎机的设计缺乏一定的理论依据。

youdao