共 50 条
- [22] The primary exploration on reproduction of the mass unit kilogram CHINESE SCIENCE BULLETIN-CHINESE, 2020, 65 (2-3): : 134 - 141
- [23] STATE PRIMARY STANDARD OF UNIT OF ELECTRIC RESISTANCE - OHM MEASUREMENT TECHNIQUES-USSR, 1971, 14 (12): : 1791 - &
- [26] PRIMARY STATE STANDARD FOR UNIT MAGNETIC-MOMENT MEASUREMENT TECHNIQUES, 1977, 20 (10) : 1396 - 1399
- [28] STATE PRIMARY STANDARD OF UNIT OF NEUTRON-FLUX MEASUREMENT TECHNIQUES, 1972, 15 (08) : 1139 - 1143
- [30] STATE PRIMARY STANDARD FOR THE CONCENTRATION UNIT FOR COMPONENTS IN GASES MEASUREMENT TECHNIQUES USSR, 1990, 33 (07): : 730 - 735