- everlasting blowoff valve
- 连续: 6年未出事故. There have been no a ...
- 泄: let out; discharge; release
- 放: release; set free; let go
- 阀: established house or power g ...
- 泄放阀: bleed valve; bleeder valve; bleeding cock; blow valve; discharge valve drain valve; dischargevalve; drip cock; release valve
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