Electrical control panel and electrical box is not complete.
电力控制面板和电力箱不完整。
There is a switch board (control panel, distribution box) mounted on the wall.
在墙上装有一个开关板（控制盘、配电箱）。
Next, select Panel-Group Box from the Visual Palette (Figure 23) and drag it on to the page under the output control.
接着从Visual Palette中选择Panel - Group Box(图23)并将其拖动到页面的输出控件下。
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