... contacting efficiency 接触效率 contacting pattern 接触型式 contacting plunger 接触插棒 ...
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Only a small portion of their surface is actually contacting the cylinder wall. The ring area that does contact the cylinder wears down the roughness of the honing pattern on the cylinder walls.
只有一小部分表面接触到了缸壁上，接触到缸壁上的部分磨损其对应的缸壁上的珩磨粗糙度。
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