Modern location practice is based on photo grammetric techniques. The parallel to traditional methods is striking; each contains the succeeding steps of area and route reconnaissance, preliminary survey, and final location.

 
  • 现代定线测量工作以摄影测量法为基础,和传统测量法的相同之处是显而易见的,都包括这些连续的工作步骤:区域和线路踏勘,初测以及最后的定线。
今日热词
目录 附录 查词历史