The safety switch can be an electrical switch that opens the control circuit if the car is in gear.

安全开关可以是一种电子开关，当汽车挂挡后，它断开控制电路。

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Install a shut-off device for the fuel system and the circuit in the hidden place of the vehicles. Set the remote control switch to prevent car theft.

在汽车隐蔽处，安装一个油路、电路关闭装置，设置遥控开关，防止汽车被盗。

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