共 37 条
[1]
ALDER R, 1968, IEEE T SON ULTRASON, VSU15, P157
[2]
THE ABC OF COLOR TELEVISION
[J].
PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS,
1955, 43 (11)
:1574-1579
[3]
BOUTIN H, 1967, 74 M AC SOC AM
[4]
FOTLAND RA, 1960, Patent No. 665228
[5]
FOTLAND RA, 1957, Patent No. 2919574
[6]
FREITAG W, 1959, 2 P INT C MED EL, P373
[7]
FROMMER RL, 1967, 1967 P INT C MED ED, P21
[8]
GOLDMAN R, 1962, ULTRASONIC TECHNOLOG, P211
[9]
GRASYUK DS, 1965, SOV PHYS ACOUST, V11, P438
[10]
HARTWIG K, 1959, ACUSTICA, V9, P109