hydraulic piston

基本解释

However, someone thinks that the optimum oil recovery mode of Lunnan oilfield should be hydraulic piston pump.
但有人对此提出了不同意见，认为该地区的机械采油应首选水力活塞泵。
In chapter 2, a fixed high pressure single-phase water mist fire suppression system driven by water hydraulic piston pump is developed.
第二章，研制了由纯水液压柱塞泵驱动的固定式高压单相流细水雾灭火系统。
At the initial stage of development, the main oil production methods give priority to hydraulic piston pump and closed hot water circulation.
开发初期，主导开采方式主要以“水力活塞泵、闭式热水循环”等采油工艺为主。