About SHIRAKAWA YOSHIYUKI
About HORIKOSHI KIYOMI
About 新日本製鉄
About AMANO HIRO
About 天野研
About 計測自動制御学会論文集
About thickness measurement
About Measuring methods and instruments of length,area,cross section,volume,angle
About ガンマ線
About 透過
About 現象
About 鋼板
About 厚さ計測