磨损是造成机械零部件失效的主要原因之一。
Wear is one of the major causes of machinery parts' failures.
一旦该部件失效，系统就会停止正常运行，启动不了，也恢复不了。
Once the component fails, the system will stop running, can not start, can not recover.
可通过故障树分析及评估控制系统部件失效所产生的影响，确保始终维持安全状态。
A fault tree can be developed to evaluate the impact of the failure of a control system component and to ensure that safe conditions are maintained.
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