long stroke pumping unit
常见例句
- 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。 返回 long stroke pumping unit