共 11 条
[1]
BOLZ RE, 1973, CRC HDB TABLES APPLI, P87
[2]
Carson P L, 1973, J Clin Ultrasound, V1, P208
[3]
ENSMINGER D, 1973, ULTRASONICS, P200
[5]
GOLDSTEIN A, 1980, QUALITY ASSURANCE DI
[7]
MADSEN E L, 1978, Medical Physics (Woodbury), V5, P391, DOI 10.1118/1.594483
[8]
MAGUINESS M, COMMUNICATION
[10]
1979, METALS HDB, V2, P213