About YAMAGATA Yutaka
About 精密工学会大会学術講演会講演論文集
About neutron
About ultraprecision machining
About focusing(light)
About mirror
About nickel plating
About precision grinding
About polishing(machining)
About Ni-P coating
About mirror
About ultra-precision grinding
About ultraprecision polishing
About Grinding
About Special machining
About 中性子
About 集光
About ミラー
About 超精密