long stroke pumping unit
常见例句
- The favourable conditions for developing the drum type long stroke pumping unit are expounded.
論述了發展滾筒式長沖程抽油機的有利條件。 - The crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.
曲柄鏈條動滑輪式長沖程抽油機是一種新型抽油機。 - The cylinder chain lower super long stroke pumping unit is a kind of up to date and high efficiency equipment.
圓柱鏈低矮式超長沖程抽油機是一種新型高傚有杆採油設備。 返回 long stroke pumping unit