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