共 7 条
[1]
BERGMANN L, 1942, ULTRASCHALL, P76
[2]
RAYLEIGH, THEORIE SCHALLS, V2, P203
[3]
RIEGGER H, 1924, WISS VEROFF SIEMENSK, V3, P67
[4]
ROLL A, 1950, Z METALLKD, V41, P413
[5]
ROLL A, 1950, Z METALLKD, V41, P339
[6]
Schmid G, 1937, Z ELKTROCHEM ANGEW P, V43, P597