The bass level is adjustable with a rear panel mounted control.
低音音量可以用装在后面板上的控制旋钮来调整。
Swing away control panel mounted on a tubular steel arm.
摇臂式控制面板由管状钢架支撑。
The jack is usually mounted in a wall plate or patch panel.
杰克通常安装在壁板或接线板。
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）。
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）。
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