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
塞环与连杆之间、塞环与或塞槽之间需要一层油膜以承受住这些高压、阻止漏
。
缸和
塞之间运动时流体的渗漏)
防污染装置的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，在塞环与连杆之间、塞环与或塞槽之间需要一层油膜以承受住这些高压、阻止漏。
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