long stroke pumping unit

常见例句

双语例句

• The favourable conditions for developing the drum type long stroke pumping unit are expounded.
  论述了发展滚筒式长冲程抽油机的有利条件。
• The crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.
  曲柄链条动滑轮式长冲程抽油机是一种新型抽油机。
• The cylinder chain lower super long stroke pumping unit is a kind of up to date and high efficiency equipment.
  圆柱链低矮式超长冲程抽油机是一种新型高效有杆采油设备。
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