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近年来,我矿在曲线巷道施工中采用“刈线法”测设中心线,实践证明这种方法比“短弦法”具有工作量少、精度高的优点。现简要介绍如下。
In recent years, our mine has adopted the “twisted line method” to measure and set the centerline in the construction of curvilinear roadways. Practice has proved that this method has the advantages of less workload and high precision than the “short-string method”. The brief introduction is as follows.