Each housing facility should have an adequate number of unlocked and clearly marked exits for evacuation in case of emergency.
居住楼房需有足够的，清楚标明且未上锁的紧急出口以应付突发事件的发生。
Each housing facility should have an adequate number of unlocked and clearly marked exits for evacuation in case of emergency.
居住楼房需有足够的，清楚标明且未上锁的紧急出口以应付突发事件的发生。
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