精密光亮磨光 meaning in English
precision ground
Examples
- Precision ground blade on both sides for tighter packing chamber sealing . sealing face of the gate is lapped to provide the best possible seat tightness
两侧都经过精密光亮磨光的刀片确保填料腔的气密性密封。闸板的密封面经过研磨，以提供最好的阀座密封性。