Friction from the small, the most suitable for high speed rotation, low noise, low vibration.

摩擦力距小，最适合于高速旋转，低噪音、低振动的场合。

youdao

Friction from the small, the most suitable for high speed rotation, low noise, low vibration.

摩擦力距小，最适合于高速旋转，低噪音、低振动的场合。

youdao