failure-free operation

• 正常运行

failure-free operation的用法和样例：

例句

1. Run system can increase cost saving by lowering the failure cost.
   一个正常运行的系统能减少系统维修的费用。
2. Detectors have weatherproof housings for reliable operation in harsh conditions.
   探测器有防水外壳，能在恶劣条件下正常运行。