This article introduced the basic principles, the implementing points and the application effect of superimposing directionalcorrection of inclination for deep exploration in Daye Iron Mine.
通过大冶铁矿深部勘探实践，介绍了叠加定向纠斜法的基本原理、实施要点、使用效果。
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Secondly, owing to the form image skew, a skew detection and correction based on the directional single-connected chain is adopted.