Anomalous refraction is believed to be the main error source for classical astrometry.
2
回顾了作为实用天文学和大地测量学中基本研究课题之一的大气折射映射函数研究的进展。
The development of the mapping function of atmospheric refraction, which is a basic research project in practical Astronomy and Geodesy, is listed in this paper.
3
本文从“陌生人社会”这一社会学概念入手，直面三鹿毒奶粉事件折射出的法律问题。
This paper interprets the Incident of Sanlu Poisonous Milk Powder in respect of stranger society, the sociology concept.
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