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