GPS定位的结果属于WGS-84坐标系，而水底地形点坐标属于工程中的施工坐标系。
The data from GPS is in the WGS-84 coordinate system, the data of underwater terrain point, however, is subjected to an engineering coordinate system.
本文根据生产实践，介绍了高等级公路隧道GPS控制网的建立及用于施工坐标系的数据处理方法。
Based on the practice of high-grade highway tunnel GPS survey, establishment and data processing method for independent coordinate system of tunnel GPS control network are introduced in the paper.
为更好地满足沪杭磁悬浮工程全线施工定线的需要，提出了引用一种新型大地坐标系的设想。
In order to satisfy the requirement for the route location of the Shanghai-Hangzhou magnetic suspension project, a new form of geodetic coordinate system was proposed.
为更好地满足沪杭磁悬浮工程全线施工定线的需要，提出了引用一种新型大地坐标系的设想。
In order to satisfy the requirement for the route location of the Shanghai-Hangzhou magnetic suspension project, a new form of geodetic coordinate system was proposed.
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