鋼軌 [钢轨]

Jyutping gong3 gwai2
Pinyin gāng guǐ

Definitions (CC-CEDICT)
  1. steel rail
Definitions (Wiktionary)
  1. noun
    rail (metal bar that makes the track of a railroad); track
    (syn.) 铁轨, 鐵軌
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）