Sheet testing devices
作者： Martin Hans Joachim
DOI:
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摘要:
lens.org 参考文章(5)
Renaut Paul, Rotative probe for ultrasonic detecting devices ,(1954)
Meunier Marcel, Rotating diaphragm transducer for solid material testing ,(1948)
Norman G Branson, Rail flaw detection device ,(1951)
Leon W Camp, Transducer construction employin employing annular vibrators ,(1955)
Robert A Mcconnell, Supersonic test device ,(1946)