beam pump
短語詞組
- beam engine pump 橫梁發(fā)動機(jī)泵
- balance beam engine pump 發(fā)動機(jī)平衡桿泵
- beam balanced pump 游梁式抽油機(jī)
- beam -pump unit 游梁式抽油機(jī)
- balance e beam engine pump 發(fā)動機(jī)平衡桿泵
- walking beam pump 桿式泵
- beam pump well 桿泵井;游梁式抽油井
- beam pump unit 游梁抽油機(jī)
- walking beam pump coupling 桿式泵聯(lián)軸器 返回 beam pump