共 14 条
[1]
Bergmann L., 1946, ULTRASONICS THEIR SC
[2]
CHARLOTTE HF, 1957, ELECTRON ENG, V29, P373
[3]
OSCHEPKOV PR, 1955, SOVIET PHYSICS ACOUS, V1, P363
[4]
SEMENNIKOV YB, 1958, SOV PHYS ACOUST, V4, P72
[5]
Smyth C.N., 1963, P I ELECTR ENG, V110, P16
[6]
SMYTH CN, 1963, J INSTITUTION ELECTR, V9
[7]
SMYTH CN, Patent No. 801294
[8]
SOKOLOV S, 1937, Patent No. 477139
[9]
SOKOLOV S, 1936, Patent No. 49
[10]
SOKOLOV SJ, 1939, Patent No. 2164125