针对GPS实时动态定位技术在铁路勘测中的应用，提出连续三角网重复设站测量既有线的方法。
A new surveying method with GPS RTK technique is proposed for the existing railway by overlapped stations in continuous triangle networks.
现有的绝大多数测量控制网仍由三角测量系组成。
Triangulation still constitutes the framework of most existing surveys.
GDCORS网在珠三角地区基准站分布密，RTK实时定位结果可以满足航摄像控测量的要求。
The GDCORS net distributes a secret in pearl triangle area station, RTK real time allocation result can satisfy the request of Photo-control-point Surveying measurement.
通常对于精确的测量，控制点是根据三角网来定位的。
Usually for a precise survey control points are established by triangulation.
通常对于精确的测量，控制点是根据三角网来定位的。
Usually for a precise survey control points are established by triangulation.
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