我们都知道房屋装修需要更改电路,而且常常会遇到电线不好连接的情况,需要焊接。焊接时为了保证安全,我们需要先断开电源,但断开电源后电烙铁又不能加热。于是,赵志凡同学通过查阅资料和向人请教之后,想出了一种不需要电能的烙铁的方法。 We all know that home improvement needs to change the circuit, and often encounter the case of poor wire connection, the need for welding. In order to ensure the safety of welding, we need to disconnect the power supply, but after the power is turned off, the soldering iron can not be heated. As a result, Zhao Zhifan students through access to information and advice to people came up with a way that does not require electric energy soldering iron.