在大部分发动机中，采用铸铁做为气缸壁的良好材料。
For most engines, cast iron has been found to be a satisfactory cylinder-wall material.
灰尘同．样也会导致轴承、气缸壁、活塞和活塞环的磨损。
The dust will also cause bearing, cylinder-wall, and piston and ring wear.
活塞的主要部分叫活塞裙部。其与气缸壁接触形成了支承面。
The main section of a piston is known as the skirts. It forms a bearing area in contact with the cylinder wall.
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