Conduct operation including sampling, mounting, polishing, etching, microscope inspection, hardness testing, NDT testing (magnaflux particles, ultrasonic etc).

协助工程师进行材料试,报告以及.

This paper introduces promiseful applications of a new wave type so called ultra sonic creeping wave in NDT.

文介绍超声无中一种具有较好应用前景的波型──超声爬波。