视点取向与“上来、上去”的使用

The Choice of the Viewpoint and the Usage of "Shanglai" & "Shangqu"

运动与视点共处于一个座标体系中,该座标体系由人称、时间、空间三维组成。运动是“上来”还是“下去”,要同时考察运动自身在座标中的位置及它相对于视点位置。在不同的人称及时空条件下,不同的运动方式相对于不同的视点角度时,“上来、上去”的使用规律不一样。

Both movement and Viewpoint are situated in the same coordinate system, which is made up ot three coordinate axises ：person,time and space. Whether the movement is shanglai＂or shangqu depends on two factors：one is the location where the movement itself is in the coordinate; the oteher is the location where the movement is to the viewpont. In different environmet of person, time and space ,the movement has its using rule of ＂shanglai＂ or＂ shangqu＂ with regard to different viewpoint