The freezing drill bore project is the chiefly working procedure of a mine construction.Its quality could directly influence the periods of a mine construction.

 
  • 凍結造孔工程是礦井建設當中的首要工序,其質(zhì)量高低直接影響到礦井建設的周期,只有高質(zhì)量完成每一個(gè)凍結孔施工,縮短凍結時(shí)間,才能使礦井早日建成投產(chǎn);
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