... Salmonellease 沙门氏杆菌属 air release valve 排气阀;放空阀 deoxyriboncclease 脱氧核糖核酸酶 ...
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c)如果燃烧器(Burner pipe train)包括断流阀(Block valve)和排气阀(Vent valve),排气阀会关闭,而主燃气阀main gas valve is energized.,同时断流阀会在主燃气阀打开之后打开。
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