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