其中最常见的问题是髋臼臼底机械性磨损引起的疼痛(71%)。
The most essential problem causing hip pain was mechanical wear in acetabulum (71%).
预防性使用能及时保护发动机，这是由于磨损降低和润滑性改善，以减少机械损伤。
Precautious use can protect the engine in time from mechanical damage due to reduction of wear and tear and improvement in lubrication.
由于机械设备的磨损失效是一种连续的渐发性失效，因此在判别失效准则上存在着模糊性。
There is some of the fuzzy on the defining standard of failure because the abrasion failure of machine facility is a consecutive and gradually failure.
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