About PLOTNIKOV A
About Queen’s Univ., Ontario, CAN
About CLAPHAM L
About Queen’s Univ., Ontario, CAN
About Insight
About piping(system)
About Nondestructive testing
About Piping fittings,valves
About 配管検査
About 応力効果
About 磁気
About 非破壊評価
About 相互作用
About 欠陥
About 研究