survey control短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 测量控制 This paper presents the consideration of establishing the bench marks, working bench marks, marks nets properly for the survey control net of vertical displacement in observation design. 本文介绍了在设计时，为设立完整而合理的垂直位移测控系统，对基准点、工作基点、标志和测控网布设的考虑。 cnki