重じゅう軌き条じょうじ字FuriganaMeanings1nounheavy railTechnical term in railway engineering for rails with a high weight per meter, used for heavy traffic or high-speed lines.新しん幹かん線せんの線せん路ろには重じゅう軌き条じょうが使つかわれている。Heavy rails are used on Shinkansen tracks.
