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