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