共 50 条
- [31] MELTING CONTROL WITH THE DIRECT-READING SPECTROMETER JOURNAL OF METALS, 1949, 1 (10): : 28 - 30
- [36] Direct-reading instruments for fibre measurement GEFAHRSTOFFE REINHALTUNG DER LUFT, 1996, 56 (02): : 69 - 71
- [40] Direct-Reading Light Flux Meter JOURNAL OF THE SOCIETY OF MOTION PICTURE & TELEVISION ENGINEERS, 1951, 57 (01): : 28 - 32