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