NRC and TIPC-CASI!Proceedings of International symposium of Temperature and Thermal Measurement in Industry and Science.Chengdu,2019 [29]Preston-Thomas,H.The International Temperature Scale of 1990 (ITS-90).Metrologia,1990,27(2):107 [30]Gao B,Zhang HY,Han D X,et al.Measurement of thermodynamic temperature between 5 K and 24.5K with single- pressure refractive-index gas thermometry.Metrologia,2020,57(6):065006 [31]Chen YY,Zhang H Y,Song Y N,et al.Thermal response characteristics of a SPRIGT primary thermometry system. Cryogenics,2019,97:1 [32]Gao B,Pan C Z,Pitre L,et al.Chinese SPRIGT realizes high temperature stability in the range of 5-25K.Science Bulletin,2018.63(12:733 [33]https://www.kevsight.com/cn/zh/assets/7018-01698/technical-overviews/5989-7603.pdf [34]https://sine.ni.com/apps/utf8/niid web display.model page?p model id=1547 [35]http://www.isotechna.com/v/vspfiles/product_manuals/asl/F900.pdf B3]https /wwwlkeshore.com/products//pification/temperature-product/cyoure-ensors cernox 团 Journal of Thermal Science,in press,2021 经 38]Sutton G,Underwood R,Pitre L,et al.Acoustic Resonator Experimer the Boltzmann Constant and Remaining Challenges.International 39]Waveguide effects on quasispherical microwave cavity reson nt Science Technology,2010,21 (7): 075103 [40]Mehl,James B.Second-order electromagnetic eigenfr ial ellipsoid II.Metrologia,2015,52 (5):S227 录用稿件，NRC and TIPC-CAS // Proceedings of International symposium of Temperature and Thermal Measurement in Industry and Science. Chengdu, 2019 [29] Preston-Thomas, H. The International Temperature Scale of 1990 (ITS-90). Metrologia, 1990, 27 (2): 107 [30] Gao B, Zhang H Y, Han D X, et al. Measurement of thermodynamic temperature between 5 K and 24.5 K with single￾pressure refractive-index gas thermometry. Metrologia, 2020, 57 (6): 065006 [31] Chen Y Y, Zhang H Y, Song Y N, et al. Thermal response characteristics of a SPRIGT primary thermometry system. Cryogenics, 2019, 97: 1 [32] Gao B, Pan C Z, Pitre L, et al. Chinese SPRIGT realizes high temperature stability in the range of 5–25 K. Science Bulletin, 2018, 63 (12): 733 [33] https://www.keysight.com/cn/zh/assets/7018-01698/technical-overviews/5989-7603.pdf [34] https://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=1547 [35] http://www.isotechna.com/v/vspfiles/product_manuals/asl/F900.pdf. [36] https://www.lakeshore.com/products/categories/specification/temperature-products/cryogenic-temperature-sensors/ cernox [37] Hu J F, Zhang H Y, Song Y N, et al. Investigation of high-stability temperature control in primary gas thermometry. Journal of Thermal Science, in press, 2021 [38] Sutton G, Underwood R, Pitre L, et al. Acoustic Resonator Experiments at the Triple Point of Water: First Results for the Boltzmann Constant and Remaining Challenges. International Journal of Thermophysics, 2010, 31 (7): 1310 [39] Waveguide effects on quasispherical microwave cavity resonators. Measurement Science & Technology, 2010, 21 (7): 075103 [40] Mehl, James B. Second-order electromagnetic eigenfrequencies of a triaxial ellipsoid II. Metrologia, 2015, 52 (5): S227 录用稿件，非最终出版稿