水封阀 water sealed valve; water-sealed valve 水封管 dipipe; sealing water pipe; water sealing (sealing water) pipe; water-sealed pipe .
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The method using movable metal baffle and control valve near water sealed well to block the drain of oil tank group is unreliable and it will widen flowing fire area.
用活动金属挡板及水封井附加控制阀门封闭油罐组排水沟的方法既不可靠又会使流淌火面积扩大。
Though there is no condensate water that uses ball-type sealed lever to make the valve clack tightly adhesion to the valve seat, it can prevent the fresh vapor from leakage.
由于阀座孔在凝结水水位以下，形成水封，水、汽自然分离，达到无蒸汽泄漏。
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