coaxial
adjective uk/ˌkəʊˈæk.si.əl/ us/ˌkoʊˈæk.si.əl/
同轴的，共轴的
sharing an axis (= central point)
coaxial lines 同轴线
（电缆）同轴的
a coaxial cable has two concentric wires (= wires that share a central point) to conduct the signal, separated by an insulating layer
Cable TV channels and internet services are usually transmitted to a home or business via coaxial cable. 有线电视频道和互联网服务通常通过同轴电缆传输供家用或商用。