Piston rings require an oil film between ring and liner and between ring and piston groove to seal against these high pressures and to prevent blowby.
为了密封，在活塞
杆之间、活塞或活塞槽之间需要一层油膜以承受住这些高压、阻
漏气。
Piston rings require an oil film between ring and liner and between ring and piston groove to seal against these high pressures and to prevent blowby.
为了密封，在活塞杆之间、活塞或活塞槽之间需要一层油膜以承受住这些高压、阻漏气。
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核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
