泵柱塞；滑阀泵
The shortcoming of top valve housing for standard type oil well pump plunger is wear and rupture of oil flow pore wall.
标准型抽油泵柱塞上阀罩的工作缺陷是出油孔壁磨损断裂。
The travelling valve of the pump is designed to be closed and opened forcibly, and the pump plunger adopts equal-diameter bare pipe with a floating structure to prevent gas lock and sand sticking.
这种抽油泵柱塞游动阀采用机械强制开启和关闭的结构，柱塞为等径光管、浮动结构，可防止发生气锁游动阀、阀球关闭滞后、砂卡柱塞现象。
Using constant pressure variables plunger pump, output pressure can keep constant and flow varies as per system's demand.
采用恒压变量柱塞泵，输出压力保持恒定，输出流量根据系统需要而变化。
This article introduces the technological improvement of deburring the plunger couples of P7 pump in order to ensure Dlunser couples cleanness to the standard.
通过对P 7泵柱塞偶件去毛刺工艺的改进，确保P 7泵柱塞偶件清洁度达到规定的要求。
In this paper, the failure mechanism of plunger seals for injection pump used in oil field is investigated and the features of existing reciprocating seal structures are evaluated.
对大功率油田注水柱塞泵柱塞密封的失效机理进行了论述，分析了现有几种典型的密封结构。
|slide valve pump;泵柱塞；滑阀泵
“pump plunger”是一个机械工程领域的专业术语，以下是综合多个搜索结果的详细解释：
提示：如需查看具体应用案例或技术参数，可参考（工作原理对比）和（材质说明）。
"Pump" 作为名词，指的是一种机器或装置，它可以将液体或气体从一个地方抽出或推入另一个地方。例如："I need to fill up my car with gas, so I'm going to go to the gas pump."（我需要给车加满油，所以我要去加油站。）
作为动词，"pump" 指的是用泵将液体或气体从一个地方抽出或推入另一个地方，例如："The firefighters used a hose to pump water into the burning building."（消防员用水管将水泵入着火的建筑中。）
"Plunger" 通常指的是一种工具，它可以通过向下压或拉出来创建真空，然后将空气或水推出下水道或马桶等管道。例如："I need to use a plunger to unclog the toilet."（我需要用活塞来疏通马桶。）
它还可以指某些机器或装置中的活塞部件。例如："The mechanic replaced the plunger in the car's engine."（机械师更换了汽车引擎中的活塞。）
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