动力配电盘、配电箱、开关、变压器等设备附近，不准堆放各种（）、潮湿及金属物体。
题型：填空题
问题：
动力配电盘、配电箱、开关、变压器等设备附近，不准堆放各种（）、潮湿及金属物体。
题型：填空题
开放作文。
根据下面提示，写一篇短文，字数不少于50。
In your spoken English class, your teacher shows you the following picture. You are asked to describe
the picture and explain how you understand it.
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