contact fuse

例句：

1. 1. The contact fuse is the first thing that needs to be checked when troubleshooting a circuit.
   在排查电路故障时，首先需要检查的是接触熔丝。
2. 2. The engineer connected the wires together using a soldering iron and tested the contact fuse.
   工程师使用焊铁将电线连接起来并测试了接触熔丝。
3. 3. The contact fuse was designed to prevent overheating in high-voltage electricalsystems.
   接触熔丝的设计目的是防止高压电气系统中的过热现象。