槽口接缝处

例句：

1. 1. The car's engine has a big slot for the air filter.
   这辆车的引擎有一个大的插槽用于安装空气过滤器。
2. 2. The machine has several slots for different parts.
   这台机器有几个插槽用于不同部件。
3. 3. The door has a small slot for the key.
   门上有一个小插槽用于钥匙。