The current methods of the radiometric calibration are based on the establishment of high-precision primary standard and standard transfer chain, and the transfer chain is the main source of errors.
现行辐射定标方法都需要建立高精度初级标准及标准传递链，传递环节是误差的主要来源。
Waveform distortion is a primary factor affecting the measure precision of steady sine standard vibration calibration system.
波形失真度是稳态正弦标准振动台计量中影响计量校准精度最主要的因素。
This paper will introduce the improvement of national primary standard for low pressure, middle pressure and high pressure, and the development of dynamic pressure calibration technology in China.
本文介绍了我国微压、中压和高压方面国家基准的改进和我国动态压力校淮技术的进展情况。
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