共 23 条
- [1] ARENS H, 1931, PHOT KORR, V76, P1951
- [3] BERGMANN L, 1949, ULTRASCHALL, P627
- [4] ECKARDT A, 1950, ANN PHYS-BERLIN, V7, P410
- [5] EDER JM, 1920, EIN NEUES GRAUKEIL P, P38
- [6] EGGERT J, 1951, FUNDAMENTAL MECHANIS
- [7] ULTRASONIC LENSES AND TRANSMISSION PLATES [J]. JOURNAL OF SCIENTIFIC INSTRUMENTS, 1945, 22 (12): : 238 - 243
- [9] HAUL, 1950, ANGEW CHEM, V62, P186
- [10] HOFFMANN MW, 1897, WIED ANN, V60, P269