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| 安全操作; 无故障; 无故障运行; 不间断运行 | |||
| 无线电波全息学; 无停电运行; 正常操作; 可靠工作; 无事故运行; 无故障的工作 | |||
| 无事故工作; 安全工作; 安全生产 | |||
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| 无故障运转 | |||
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