发行时间：2017.01.02
总页数：84
编辑：
综保科技
摘要：
brief overview
military applications of underground openings
j. david rogers
geological engineering university of missouri-rolla
historic examples
sappers used to penetrate medieval castles, resulting in perimeter moats crater tunnels excavated during american civil war and first world war sewer systems utilized by insurgents in warsaw ghetto during ww2 bataan peninsula redoubt ww2 german aircraft production moved below ground during ww2
historic examples
underground pol storage at pearl harbo...
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