In this paper, unit moving trihedron is first constructed for a point on the surface of a revolution ellipsoid.
以旋转椭球体面

为原
建立

地坐标单位活动坐标架。
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文篇
洲 After 79 years, Shimizu, who is now 94, returned to Harbin, where Unit 731 was once located, to expose and testify to the crimes committed by his detachment during the War of Resistance Against Japanese Aggression (1931-45).
时隔79年,现年94岁的清水英男重返让他背负
生沉重记忆的原点——位于中国哈尔滨的侵华日军第七三
部队旧址(现为侵华日军第七三
部队罪证陈列馆),揭发731部队在抗日战争(1931-1945)期间犯下的罪行。