basic switch connection

例句：

1. 1. The basic switch connection is crucial for the proper functioning of the device.
   基本开关连接对于设备的正确运行至关重要。
2. 2. During the installation process, it's important to ensure that all basic switch connections are secure.
   在安装过程中，确保所有基本开关连接都安全是非常重要的。
3. 3. The engineer carefully checked each basic switch connection to ensure there were no loose parts.
   工程师仔细检查了每个基本开关连接，以确保没有松动的部分。