関西の自動改札機の導入時期 https://osaka-metro-pm.com/2020/05/15/%e9%96%a2%e8%a5%bf%e3%81%ae%e8%87%aa%e5%8b%95%e6%94%b9%e6%9c%ad%e6%a9%9f%e3%81%ae%e5%b0%8e%e5%85%a5%e6%99%82%e6%9c%9f/