piston-type poppet valve的用法和样例：
例句
- 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 additional benefit of lifting the plug is the low friction and low torque required to cycle the valve.
提升阀塞的其他优点是循环操作阀门所要求的低摩擦和低扭矩。
