... 汲极；吸极；排水；排流 drain 排流线圈 drain coil; drainage coil 汲极电流；吸极电流 drain current ...
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heating coil drain valve 加热盘管排泄阀
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The coil products including: carbon steel coils, stainless steel coils, aluminum brass coils and steam drain valve group.
盘管产品范围：碳钢盘管、不锈钢盘管、铝黄铜盘管及蒸汽疏水阀组。
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