作者: Fred G. Delonti , Paul A. Cartwright , Christopher Dean Rettig , Kevin L. Alft
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摘要: Systems provide for electronic development of a bore plan use in connection with an underground boring machine. Electronically developing involves providing topographical information representative topography the site and path intended site. The includes at least two target points through which is to pass. can define pilot or backream path. comprise entry point exit point, each defined by distance value, lateral depth value.