Ethernet used its cabling as radio "ether" by simply broadcasting packets over a thick coaxial line.

通过在粗同轴电缆中以广播方式发送数据包，以太网把网线布线当作广播用的“光以太”。

youdao

Disadvantages include the need for extensive cabling and the use of many coaxial relays.

缺点包括需要大量的电缆连接，并且使用同轴继电器。

youdao

The wiring is typically either category 5 Ethernet cabling or coaxial cable like that used for cable TV, or some combination of both, with other technologies mixed in.

FORBES: Magazine Article