Connect survey for haulage drifits is an improtant work of mine survey,it can play positive role for mining production,and it has effect for economic benefits of mine to a great extent.

 
  • 運輸巷道的貫通測量是礦山測量的一項重要工作。它對礦山生產(chǎn)建設起著(zhù)舉足輕重的作用,并在很大程度上影響礦山企業(yè)的經(jīng)濟效益。
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