Students will power is sent to the control box, press ON / OFF button switch ON keys, operation indicator light, machine.

将电源送至控制箱内，按下ON/OFF按钮开关的ON键，运转指示灯指示，机。

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Use relays, contactor, button, air switch and travel switch etc low-voltage constitute control circuit called relay contact control circuit.

使用继电器、接触器、按钮、空气开关、行程开关等低压电器构成的控制电路称为继电接触控制电路。

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Different buttons or switches can be found on the control panel. A button or switch defines a given mineral resource.

在展品操作面板上有一系列控制按钮(开关)，每一个开关代表不同的矿产资源。

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Users can easily call up or switch between functions assigned to the Fn (Function) button and control ring and change setting values as needed, allowing them to quickly set up their preferred style.

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