短語詞組短語throttling butterfly valve [機]蝶形節(jié)流閥throttling control valve 節(jié)流控制閥Spiral throttling expansion valve 螺旋節(jié)流膨脹閥suction throttling valve 吸氣節(jié)流閥;吸入節(jié)流閥;吸進口THROTTLING VALVE DISC 節(jié)流閥片digital throttling valve 數(shù)字節(jié)流閥flat throttling valve 平面節(jié)流閥a throttling valve 節(jié)流throttling non return valve 節(jié)流止回閥 返回 throttling valve