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
与连杆之间、与或槽之间需要一层油膜
住这些高压、阻止漏气。
之间运动时流体的渗漏)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，在与连杆之间、与或槽之间需要一层油膜住这些高压、阻止漏气。
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