求翻译：摘 要 矿区控制网是矿区测绘工作的基础，它的好坏直接关系到矿区井上下测绘工作是否长期方便的进行以及测绘的精度。本文以富全矿业建立地表控制网为例，简要说明了建立地表控制网以及其对地表与矿井之间的联系测量、井巷控制测量产生的重大意义，并对其精度进行分析。是什么意思？

Summary of control network in mining areas is the basis of surveying and mapping in mining area, its well-directly related to the mining area of surveying work is long-term and mapping accuracy. To rich full surface control network in mining industry established in this article as an example, outlined the establishment of surface control network and its links between mine and surface measurements, tunnel control survey of major significance, and the analysis of its precision.