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