活塞密封圈 meaning in English
piston packing
piston seal
Examples
- Examine the plunger joint ring of electric hydraulic draw stem and pneumatic draw stem in order to ensure the normal operation of transmission device
定期检查电液推杆、气动推杆的活塞密封圈，以保证传动装置正常运行。
piston packing
piston seal