共 6 条
[1]
Carlin B, 1949, ULTRASONICS
[2]
CRAWFORD AE, 1955, ULTRASONIC ENGINEERI
[3]
KILPATRICK L, 1958, 246 AMS US DEP AGR
[4]
MURDOCK A, 1956, AMER MACHINE, V100, P97
[5]
SABET TY, 1955, THESIS MICHIGAN STAT
[6]
THORNLEY MJ, 1955, BRITISH ELECTRICAL A, P2