压出，此时液体带有克服压出管道系统所有阻力所必需的压力从泵中排出。
Press out the liquid at this time to overcome the pressure out of pipeline systems with all the necessary resistance to the pressure from the pump discharge.
为了降低三缸单作用钻井泵的压力和排量波动，通常在排出管线上安装有空气包。
In order to reduce the fluctuation of pressure and discharge capacity of the triplex drilling pump, the air accumulator is often fixed on the discharge pipe.
在泵顶部应该配置排斥叶片，用于排出固体颗粒，减少轴向推力和密封区域的压力。
Repelling vanes shall be provided on the top shroud to expel solids and reduce axial thrust and pressure at the seal area.
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