- air supply valve
- 供气: air feed; air supply
- 阀: established house or power g ...
- 舱室紧急供气阀: salvage air valve
- 供气: air feed; air supply◇供气泵 air feed pump; 供气管道 gas supply line; air line
- 气阀: air cock; air flap; air release valve; air valve; air-valve; gas damper; gas valves; valve, air
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