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Reflection method of guided ultrasonic waves induced by hammer impact for integrity evaluation of rock bolts in field
- 제목
- Reflection method of guided ultrasonic waves induced by hammer impact for integrity evaluation of rock bolts in field
- 저자
- LEE, Jong-Sub
- 학회명
- Proceedings ITA-AITES World Tunnel Congress 2009
- 개최국가
- 헝가리
- 학회 개최일
- 2009-05-23 ~ 2009-05-28