About YOSHIKI HIROYUKI
About ケミカルエンジニヤリング
About simplification
About sewage treatment
About plasma application
About bubbling
About technology development
About modification
About simplification
About sewage treatment
About Sewerage engineering and wastewater treatment in general
About Applications of plasma
About 簡易
About 汚水処理
About プラズマ
About バブリング
About 開発