But Virgin's network is limited and fibre-optic cables are expensive.

但是维京网络毕竟有限，而光纤电缆价格昂贵。

There is water for cooling, fast fibre-optic links, and the remoteness provides security.

那里有可以用来冷却的水、高速光纤连接而且遥远的距离提供了更多的安全。

Advocates of FSO like to say it has the speed of a fibre-optic link, and the convenience of a wireless link.

无线光通信的支持者喜欢说这一技术拥有光纤连接的速度和无线连接的方便性。

Below the platform sits the smart infrastructure, including water pipes with sensors and a fibre-optic network.

平台下，安设有智能化基础结构，包括带传感器的供水管道及一张光纤网络。

These can be hollow shafts or ducts with reflective internal finishes or may use fibre-optic cable technology.

光导管可采用有内反射涂层的空心管轴，或采用光导纤维技术实现。