僧一行,(公元673年—727年),本名张遂,汉族,唐代魏州昌乐人(今河南省南乐县)人,一说河北巨鹿人。唐代杰出天文学家,在世界上首次推算出子午线纬度一度之长,编制了《大衍历》。唐密领袖,著有密宗权威著作《大日经疏》。唐朝功臣、凌烟阁二十四功臣张公瑾之曾孙,生于唐高宗弘道元年,卒于玄宗开元十五年。
梁令瓒为唐代开元集贤院学士,曾与僧一行合作设计过浑天仪,是一个学者暨画家。
Liang was a palace scholar in Kaiyuan era, Tang Dynasty. He has invented the armillary sphere in cooperation with bonze Yixing. He was both a scholar and an artist.
本文介绍了一千二百多年前,由唐代天文学家张遂(僧一行)所组织进行的一次天文大地测量工作。
An astronomical geodetic survey was organized by Zhang Sui (LHsing), the Tang Dynasty astronomer, more than 1200 years ago.
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