正确、规范地使用经纬仪跟踪气球测风是提高测风质量的关键。
The key of the wind observation quality is that using the theodolite right ly and normally to follow the wind observation balloon.
作者根据20多年使用经纬仪测风的体会，深入浅出地论述了怎样测风以及如何提高测风质量。
Based on the experience from using the theodolite for 20years, we discussed how to use theodolite to observe wind and how to improve the observation quality.
通过对经纬仪测绘法1：50 0地形测图过程中各个工序的分析，得出了1：50 0地形图上的点位中误差。
Through the analysis on every procedure of surveying 1:500 topographic map with the method of transit mapping, the position error of 1:500 topographic map is got.
应用推荐