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排除井筒和下山的積水及恢復被淹井巷前,應當制定可靠的安全措施,防止被水封住的有毒、有害氣體突然涌出。????(????)

作者:煤礦安全網 2022-06-10 13:53 來源:煤礦安全網 井筒 積水 被淹井巷 措施 有害氣體
題目信息:

  排除井筒和下山的積水及恢復被淹井巷前,應當制定可靠的安全措施,防止被水封住的有毒、有害氣體突然涌出。()

  A:正確 B:錯誤

答案

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

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