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通过对渠村分洪闸沉降基点三次从外部联测三等水准的数据分析,发现了沉降基点的下沉。通过这三次联测的数据推算出了沉降基点的下沉量。
Through the data analysis on the third level of subsidence basement of Dacun floodgate, it was found that the sinking of base point of subsidence. Through the data of these three simultaneous tests, the sinking amount of the base point of settlement is deduced.