共 50 条
- [21] NOISE INVESTIGATION AT VLF BY THE NATIONAL-BUREAU-OF-STANDARDS PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1957, 45 (06): : 778 - 782
- [25] GRID PLATE CALIBRATION AT THE NATIONAL-BUREAU-OF-STANDARDS JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1988, 93 (01): : 41 - 51
- [26] CALIBRATION OF METER LINE STANDARDS OF LENGTH AT THE NATIONAL-BUREAU-OF-STANDARDS JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1955, 54 (01): : 1 - 14
- [28] INVESTIGATION OF FREEZING TEMPERATURES OF NATIONAL-BUREAU-OF-STANDARDS ALUMINUM STANDARDS JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION A-PHYSICS AND CHEMISTRY, 1974, A 78 (04): : 477 - 495
- [29] PRESENT STATUS OF THE LEAK STANDARDS PROGRAM AT THE NATIONAL-BUREAU-OF-STANDARDS JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1987, 5 (01): : 125 - 126
- [30] NATIONAL-BUREAU-OF-STANDARDS PROGRAM OF STANDARD REFERENCE MATERIALS ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 186 (AUG): : 10 - SCHB