About KANEKO MASANORI
About SASAHARA KATSUO
About TAKEUCHI MASANOBU
About Sabo Technical Center
About MINAMI NORIYUKI
About Sabo Technical Center
About SUBARKAH
About Sabo Technical Center
About pyroclastic flow deposit
About Indonesia
About General,sabo engineering
About Natural disasters
About インドネシア
About メラピ火山
About 火砕流堆積物
About 侵食
About 状況