link and pin coupler

例句：

1. 1.The link and pin coupler is used to connect two circuits together.
   链接和插针连接器用于将两个电路连接在一起。
2. 2.The engineer carefully assembled the link and pin coupler before starting the project.
   工程师在开始项目之前仔细组装了链接和插针连接器。
3. 3. The link and pin coupler was crucial in ensuring the safe operation of the electrical system.
   链接和插针连接器在确保电气系统安全运行中至关重要。