短語詞組短語butterfly spring -relief valve 蝶形彈簧安全閥butterfly -valve type deluge valve 蝶閥型雨淋閥Butterfly Valve - SHIMIZU 高溫用蝶形閥hydraulic -controlled back pressure butterfly-shaped valve 液控單曏蝶閥butterfly door -parts of valve 蝴蝶門butterfly valve water -free debugging 蝶閥無水調(diào)試the butterfly valve anti -coking 清焦蝶閥liquid -controlled butterfly valve 液控蝶閥heat -supply butterfly valve 供熱蝶閥 返回 butterfly valve