短語詞組短語screw pump rod -line 螺桿泵抽油桿vacuum -pump line 真空泵管道in -le pump 直列式柱塞泵;管道泵;管線泵;管道泵英語wire -line pump 繩索抽油泵oil -line pump detail 輸油管泵In -line Pump Gensets Engines 直列泵發(fā)電用發(fā)動機Submersible and in -line pump 水陸兩用泵cushion -hitch pump drain line 緩沖 返回 pump-line