About HIRAI EIJI
About 九州環境管理協
About MATSUOKA NOBUAKI
About 九州環境管理協
About TAKASHIMA YOSHIMASA
About Radioisotopes
About electrolysis
About Radiochemical analysis of elements in inorganic substances
About トリチウム
About 電解
About 濃縮
About 減容
About 回収率
About スパイク
About 分析
About 可能性