By analysing the shield support accident happened in coal face, discusses its reasons and divides the regions possible happened accident, points out the countermeasures.
通过对掩护支架采煤工作面发生事故的分析，论述了事故发生的原因，及可能发生事故区域的划分，并提出了防范措施。
By analysing the shield support accident happened in coal face, discusses its reasons and divides the regions possible happened accident, points out the countermeasures.
通过对掩护支架采煤工作面发生事故的分析，论述了事故发生的原因，及可能发生事故区域的划分，并提出了防范措施。
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