问题
名词解释
故障闭锁功能
答案
参考答案：
当与闭锁控制有关的设备未投入正常运行或故障时，必须切断该监控设备所控制区域的全部非本质安全型电气设备的电源并闭锁。
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故障闭锁功能
参考答案：
当与闭锁控制有关的设备未投入正常运行或故障时，必须切断该监控设备所控制区域的全部非本质安全型电气设备的电源并闭锁。
| 选择恰当的句子补全对话。 | |
B: 1______ You may ask that policeman over there. (The man goes to the policeman. ) A: Excuse me, 2______ C: No, there isn't a hotel there. But there is one near the Bank of China. A: Oh, I see. But 3______ C: You'd better take a taxi. Because it's so late, there aren't any buses now. A: 4______ C : You're welcome. |