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[多選題] 涉及到水體下開采的礦區,應當開展覆巖( )高度和范圍的實測工作,逐步積累經驗,指導本礦區水體下開采工作。

作者:煤礦安全網 2022-03-09 15:30 來源:煤礦安全網 多選題 水體 礦區 覆巖 高度 范圍 工作 經驗
題目信息:

  [多選題] 涉及到水體下開采的礦區,應當開展覆巖( )高度和范圍的實測工作,逐步積累經驗,指導本礦區水體下開采工作。

  A、 垮落帶

  B、 導水裂縫帶

  C、 彎曲帶

答案

煤礦安全網(http://www.nanibalconysafetynets.com)

備案號:蘇ICP備12034812號-2

公安備案號:32031102000832

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