About HIRAI TAKESHI
About 静岡県 交通基盤部
About HIRAI TAKESHI
About 静岡県建設技術監理セ
About 月刊建設
About construction technology
About engineer
About knowledge acquisition
About ability development
About engineering education
About technology transfer
About self-development
About information exchange
About standardization
About Shizuoka prefecture
About civil engineering technology
About civil engineering technician
About Science and engineering education
About 伝承
About 静岡
About 土木技術
About 職員
About 技術力