整せい備び新しん幹かん線せんMeaningsNoun1. five Shinkansen route extensions proposed in 1973Kanji used整put in order備equip新new幹trunk線lineComposed of整せい備びmaintenance; servicing; putting in place; development; improvement; preparation; provision; equipping; outfittingNoun新しん幹かん線せんShinkansen; bullet trainNoun