cp0,指的是高速铁路工程测量平面控制网它在框架控制网基础上分三级布设:第一级为基础平面控制网(cpⅰ)主要为勘测、施工、运营维护提供坐标基准;第二级为线路控制网(cpⅱ),主要为勘测和施工提供控制基准;第三级为轨道控制网(cpⅲ),主要为轨道铺设和运营维护提供控制基准Refers to the high speed railway engineering measurement plane control network based on the framework of control network points level 3 layout based on the first level plane control network is mainly to survey the construction operation and maintenance to provide secondary to coordinate benchmark line control network mainly control the benchmark in the exploration and construction for the third level for orbit control network main control benchmark for track laying and operating maintenance
因为CP0是直属天龙人的组织再看看别人怎么说的.Because it's an organization directly affiliated with Tianlongren. What do they say