共 50 条
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- [36] A direct reading radio-frequency meter PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1929, 17 : 0024 - 0034
- [37] A SIMPLE DIRECT-READING FLUXMETER JOURNAL OF SCIENTIFIC INSTRUMENTS AND OF PHYSICS IN INDUSTRY, 1949, 26 (02): : 40 - 42
- [38] NEW DIRECT-READING ATTACHMENT FOR 20 IN CAMERA - 3 METER CONCAVE GRATING SPECTROGRAPH SPECTROCHIMICA ACTA, 1958, 10 (03): : 330 - 330
- [39] A DIRECT-READING PHOTOELECTRIC DENSITOMETER JOURNAL OF THE SOCIETY OF MOTION PICTURE ENGINEERS, 1939, 33 (04): : 403 - 409