About TAKEDA MITSUHIRO
About OTSUKA HIROSHI
About 土木学会年次学術講演会講演概要集 第5部
About nondestructive inspection
About Failure and maintenance of bridges,and others
About Concrete bridges,ones built with other materials
About 舗装
About コンクリート床版
About 非破壊検査
About 開発
About 研究