他们把烙铁和布线的需要，把复杂的电子元件为基本模块如开关、电机、连接器、传感器和蜂鸣器。

They do away with the need for soldering irons and wiring and break down complex electronic components into fundamental blocks such as switches, motors, connectors, sensors and buzzers.

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这种车锁在现有的车锁基础上安装一个微型常闭开关、纽扣电池以及报警蜂鸣器，并通过导线进行电路连接。

Compared with the prior bicycle lock, the utility model is additionally provided with a micro normally closed switch, the button battery and the alarm buzzer which are in line connection by wires.

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