The data from the data sources of different countries are converted into the unifying data format and projection coordinates system by data conversion, projectionconversion and error correction.
将来自不同国家的数据源进行数据转换、投影变换和误差校正，转换为统一的数据格式和投影坐标系统。
2
The polarizing conversion system (PCS) of LCD projection display is studied and a novel method of design PCS is reported.
对液晶投影显示系统的偏振器件进行了研究，提出了一种新型偏光转换装置的设计方法。
3
The conversion of coordinate model includes the conversion of geography coordinate system and the conversion of projection system.