vacuum down
相关英语词汇推荐
- inhibitory action
- autosynchronous
- Quadrature components
- pending the issuance of licence
- effective projected radiant surface
- adjustment of itself
- pneumatic remote control
- leading-out
- steam circulating pipe
- Warp Beam
- maximum permissible pressure
- bog
- intermediate-base resin
- hard drawn copper wire
- normal condition
- vacuum lock
- value control amplifier
- oil heater storage tank
- relay satellite
- gravity meter