The different mathematical methods were used to calculate the threedimensionalcoordinate of the national stadiums raking columns, and the setting out method of the raking columns was elaborated.
The growth and development of upland rice root system were studied by three-dimensionalcoordinate container method.
采用自创的“三维坐标容器法”，研究了潮砂土、红壤土、水稻土对陆稻根系生长发育的影响。
3
The computer vision measuring technology based on the rectangular grid laser mark is a three-dimensionalcoordinate measuring technology with high accuracy.