【摘要】 介绍一种井下高强皮带中心放样的简便方法———辅助导线法。通过工程实践证明 :该方法精度可靠 ,能明显提高井下作业效率。更多还原

【Abstract】 In the paper, a simple method of laying out the underground high-strength belt centre, i.e. auxiliary traverse method, is introduced. Engineering practice proves that the method is reliable in precision and is capable of improving underground working efficiency obviously.更多还原