In this paper, a design process is shownthrough the plane coordinate calculation of the holing point N between number 9 slopeshaft and number 14 horizontal shaft on one mine.

 
  • 本文就某礦9坑斜井與14坑主運平煙貫通點(diǎn)N平面坐標的計算說(shuō)明這一過(guò)程。
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