All of these provide a reference date for the applications of vibration drilling with low frequency torsional vibration.

为低频扭振型的振动切削应用于生产实践提供了参考数据。

youdao

All of these provide a reference date for the applications of vibration drilling with low frequency torsional vibration.

为低频扭振型的振动切削应用于生产实践提供了参考数据。

youdao