共 50 条
- [41] A DIRECT-READING PHOTOELECTRIC DENSITOMETER JOURNAL OF THE SOCIETY OF MOTION PICTURE ENGINEERS, 1939, 33 (04): : 403 - 409
- [44] A DIRECT-READING DIFFERENTIAL MICROMANOMETER JOURNAL OF SCIENTIFIC INSTRUMENTS, 1947, 24 (11): : 295 - 297
- [47] A PRECISION DIRECT-READING DENSITOMETER JOURNAL OF THE SOCIETY OF MOTION PICTURE ENGINEERS, 1942, 38 (02): : 148 - 172