刮油密封环,刮垢环,压力密封

wiper seal的用法和样例：

例句

The pressure seal area can also be refinished with a simple honing tool.压力密封区域也可以采用简单的镗磨工具进行表面整修。
The wiper seals are usually pretty effective, but if the fork's always filthy some stuff will find its way in and wreak havoc.压力密封通常非常稳定而有效，但如果它总是被污物填充它会被严重损坏。

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