There are also concerns about whether the switching stations will catch on .
也有人担心这种电池交换站模式能否流行开来。
Psychiatrists were switching to internal medicine .
精神病医师正转换到内科。
They do this , it seems , by blowing air into the wires in the switching station .
而他们似乎将在交换站,通过把空气鼓入电话线来完成该工作。
As a result , switching software can be traumatic to them .
结果,转换软件对他们来说就像一场伤害。
We know this because paul baran -- the former rand researcher who invented packet switching -- told us so back in 2001 .
这一点正是发明出了分组交换技术的兰德公司前任研究员保罗巴兰在2001年告诉我们的。
Cisco is the world 's biggest maker of networking equipment , which includes routing and switching systems that send data between computers and connect systems to the internet .