In some application, a narrow groove is cut into the piston above the top ring to serve as a "heat dam" to reduce the amount of heat reaching the top ring.
在一些实际结构中，一条窄槽切入顶端活塞环的上部，其作用是充当“隔热槽”以减少达到顶端活塞环的热量。
The application includes membrane of membrane pump, impeller, piston, leather of piston, wearable ring and liner of pump and plastic binder applied to industrial repair.
隔膜泵隔膜、叶轮、活塞、活塞皮碗、泵的衬里、抗磨环及用于工业修补剂的塑料粘结剂。
The application includes membrane of membrane pump, impeller, piston, leather of piston, wearable ring and liner of pump and plastic binder applied to industrial repair.
隔膜泵隔膜、叶轮、活塞、活塞皮碗、泵的衬里、抗磨环及用于工业修补剂的塑料粘结剂。
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