Install, examine, replace or repair electrical wiring, receptacles, switch boxes, conduits, feeders, fibre-optic and coaxial cable assemblies, lighting fixtures and other electrical components.
安装，检查，更换或修理电线，插座，开关箱，管道，馈线，光纤和同轴电缆组件，照明灯具和其他电器元件。
2
The waveguide-coaxial rotary joint consists of the rectangular waveguide and the coaxial waveguide, is one of the key components in the radar system.
波导同轴旋转铰链是由矩形波导同轴波导构成，是雷达系统中的关键元件。
3
This paper introduces the basic components of the optical fiber system and the modulation of the optical signals and the HFC-optical fiber coaxial hybrid network.