The key technique is used for controling the motion of plunger.
柱塞举升工艺技术的关键是对柱塞运动的控制。
Plunger lift is a most efficient substituted technique to successive gas lift production. The key of the technique is control to the motion of plunger.
它是连续气举采油最有效的接替技术，技术的关键是对柱塞运动的控制。
JBP250-HP radical plunger pump is a high pressure as well as a large displacement plunger pump developed by our country. Connecting rod is one of the key spares.
HP型径向柱塞泵是我国开发的高压大排量柱塞泵，连杆是其中的关键零件之一。
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