hydraulic piston

基本解释

However, someone thinks that the optimum oil recovery mode of Lunnan oilfield should be hydraulic piston pump.
但有人對此提出了不同意見，認爲該地區的機械採油應首選水力活塞泵。
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，研制了由純水液壓柱塞泵敺動的固定式高壓單相流細水霧滅火系統。
At the initial stage of development, the main oil production methods give priority to hydraulic piston pump and closed hot water circulation.
開發初期，主導開採方式主要以“水力活塞泵、閉式熱水循環”等採油工藝爲主。