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调压阀——控制集气干线压力。 Pressure regulating valve - control the gas collecting main pressure.


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考题 Regulating Valve

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考题 单选题CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when().A the discharge valve is openB the control box glass is brokenC pressure from the control cylinders is detectedD the control cylinders have been completely discharged

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考题 单选题If a refrigeration compressor will not start, the reason may be ().A the pressure regulating valve is not closingB an excessive lack of refrigerant in the systemC badly leaking discharge valvesD worn piston rings

考题 名词解释题Regulating Valve

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