基本解释密封元件英汉例句双语例句But this kind of breakdown often found the reason finally on the functional element, namely cylinder piston potted component serious attrition result.而最终此类故障还是常在执行元件上找到原因，即油缸活塞密封元件严重磨损所致。potted component更多例句专业释义机械工程密封元件