About KATO TAKASHI
About HONMA SHIN'YA
About KITAMURA KOJI
About 農業農村工学会大会講演会講演要旨集
About waterway
About roughness coefficient
About error (measure)
About surface slope
About concrete structure
About observation error
About agricultural waterway
About Agricultural engineering
About コンクリート
About 農業
About 開水路
About 粗度係数
About 現地観測
About 水面
About 緩勾配