英语语法分析

Then switchboards brought phone wires into one location.

然后，交换台使电话线集中到一个地点。

You are right, since main switchboards are located there.

你说得对。因为主配电板安装在这里。

This center controls the work of controllers and switchboards etc.

中心控制室，控制交换机和控制器等设备的工作。