When the plunger diameter is decreased, what happens to the fill time?
当冲头的直径减少，填充时间会发生什么变化？
This timing is affected by the relationship among poppet weight, spring rate, poppet travel distance, plunger speed, and plunger diameter.
定时受提升阀重量，弹簧振频，提升阀阀程，活塞速度以及活塞直径的影响。
The outer-body diameter of the plunger is cut just under production tubing drift to provide the maximum seal while the plunger moves fr eely.
当柱塞自由移动时，柱塞的外体直径刚好能够满足生产油管内径密封需求，提供最大的密封保障。
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