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- [11] A SIMPLE DIRECT-READING FLUXMETER JOURNAL OF SCIENTIFIC INSTRUMENTS AND OF PHYSICS IN INDUSTRY, 1949, 26 (02): : 40 - 42
- [12] Design of direct-reading remote meter reading system Dianli Xitong Baohu yu Kongzhi, 2009, 19 (119-121+150):
- [13] A PRECISION, DIRECT-READING, COLOUR TEMPERATURE METER JOURNAL OF SCIENTIFIC INSTRUMENTS, 1958, 35 (12): : 449 - 452
- [14] A DIRECT-READING FREQUENCY-DIFFERENCE METER AMERICAN JOURNAL OF PSYCHOLOGY, 1948, 61 (03): : 405 - 409
- [15] A direct-reading counting rate ratio meter REVIEW OF SCIENTIFIC INSTRUMENTS, 1939, 10 (11): : 339 - 344
- [16] A THERMISTOR THERMOMETER AND DIRECT-READING ISOTONICITY METER JOURNAL OF THE AMERICAN PHARMACEUTICAL ASSOCIATION, 1958, 47 (11): : 783 - 785
- [17] A direct-reading counting rate meter for random pulses REVIEW OF SCIENTIFIC INSTRUMENTS, 1936, 7 (12): : 450 - 456
- [18] A direct-reading frequency meter of long range. PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1925, 37 : 97 - 100
- [19] FAST RESPONDING AND DIRECT-READING WBGT INDEX METER AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL, 1975, 36 (05): : 325 - 331
- [20] The "acid-alkalimeter"; A direct-reading pH meter JOURNAL OF THE OPTICAL SOCIETY OF AMERICA AND REVIEW OF SCIENTIFIC INSTRUMENTS, 1928, 17 (01): : 59 - 71