基本解释排气喷嘴英汉例句双语例句The pressure limit valve is still used to cover the steam nozzle for ensuring the surplus steam to exhaust freely.汽嘴之上仍用压阀扣上，以保证多余的蒸汽能自由排放。ip.com词组短语短语exhaust outlet casing steam nozzle 排汽喷嘴