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。
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。
This timing is affected by the relationship among poppet weight, spring rate, poppet travel distance, plunger speed, and plunger diameter.
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