About TOMYO HIRONORI
About 東北大 大学院工学研究科
About internal defect
About product
About ultrasonic test
About visualization
About reflection
About velocity
About Water
About propagation speed
About noncontact
About Thin films of organic compounds
About Rubber and plastic material testing
About 超音波
About 欠陥
About 物性
About 可視化