An undercarriage buffer plunger in an airplane suddenly fractured during the process of reinforcing pressure, and a fragment of a floating piston was thrown out.
某飞机起落架缓冲柱塞在补压时发生突然断裂，同时弹出一小块浮动活塞碎片。
2
What's more, piston rubber for mud pumps, packing for plunger pumps and various kinds of valve rubber can rival with the international similar products in performance and service life.
公司生产泥浆泵活塞胶皮、柱塞泵盘根、各种阀胶皮，其产品性能及使用寿命均达到国外同类产品先进水平。
3
A seal between the piston and the interior of the plunger prevents air or fluid from passing by the piston into the plunger.