This method realizes the 2 dimension constrained adjustment of GPS control network based on quasi-stable datum using classical adjustment of free networks and coordinate transformation method.
该方法采用经典自由网平差和坐标转换法实现基于拟稳基准的GPS控制网2维约束平差。
2
The paper expounds the application of English conjunctions in the three aspects of coordinate conjunctions, subordinate conjunctions and quasi-conjunctions.
本文分别从英语中的并列连词，从属连词以及“准连词”三方面来说明连接词语的应用情况。
3
Based on the characteristics of rolling missile with double-channel control, the autopilot loop is transferred from body coordinate system to quasi-body coordinate system after a rolling transfer.