光缆 guānglǎn optical cable
怎么记住“光缆”: 光 light + 缆 cable = optical cable.
汉字
用法
- A fiber-optic cable - 铺设光缆 (pūshè guānglǎn) to lay fiber-optic cable.
- Telecom/infrastructure term; 光 (light) + 缆 (cable) = cable carrying light signals.
- Distinguish from 电缆 (diànlǎn, electrical cable) - 光缆 specifically transmits data via light.