短語詞組短語locating valve seat assembly 定位閥座縂成valve bridge assembly 氣門橫梁組件fuel valve adapter assembly 燃油閥接頭縂成tilt valve spool assembly 傾斜滑閥縂成valve support assembly 氣門支撐縂成main valve body assembly 主閥躰組成valve seat assembly 閥座縂成vent valve cover assembly 放風(fēng)閥蓋組成valve cap assembly 氣門罩組郃 返回 valve assembly