In recent years, networks of fiber-opticcable have been replacing electrical wire for transmitting telecommunications signals.
近年来，光纤网络已经取代了传输电信信号的电线。
2
This produces a "waveguide," which functions like a one-atom-thick fiberopticcable.
这就形成了一个“波导管”，就像一个单原子厚度的光纤电缆。
3
A user flushes one end of a fiber-opticcable down his toilet; an hour later, it's recovered and connected to the Internet by a team of Plumbing Hardware Dispatchers.