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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報道

精彩|　　極??(ji)限??(xian)中??(zhong)的??(de)極??(ji)限??(xian)　　“如??(ru)果??(guo)說??(shuo)潛??(qian)水??(shui)是??(shi)極??(ji)限?(xian)運??(yun)動??(dong)??，那??(na)洞??(dong)穴??(xue)潛??(qian)水??(shui)就??(jiu)是??(shi)極?(ji)限??(xian)運?(yun)動??(dong)中??(zhong)的??(de)極??(ji)限??(xian)運??(yun)動??(dong)??。?”李??(li)皓??(hao)森??(sen)解??(jie)釋??(shi)??，一?(yi)方??(fang)面??(mian)??，水??(shui)下??(xia)環(huán)??(huan)境??(jing)復(fù)??(fu)雜??(za)??，水??(shui)下??(xia)洞?(dong)穴?(xue)有??(you)太??(tai)多??(duo)的??(de)分??(fen)叉??(cha)和??(he)支??(zhi)流??(liu)??，且??(qie)洞??(dong)穴??(xue)內(nèi)??(nei)部??(bu)通??(tong)常??(chang)都??(dou)是??(shi)沒??(mei)有??(you)氣??(qi)室??(shi)的??(de)封??(feng)閉??(bi)空??(kong)間??(jian)??，一??(yi)旦?(dan)失??(shi)去??(qu)能??(neng)見?(jian)度??(du)或??(huo)脫??(tuo)離??(li)引??(yin)導(dǎo)??(dao)線??(xian)??，這??(zhe)就??(jiu)很??(hen)容??(rong)易??(yi)面??(mian)臨??(lin)迷??(mi)路??(lu)的??(de)危??(wei)險??(xian)??。而??(er)且??(qie)??，洞??(dong)穴??(xue)多??(duo)為??(wei)頂??(ding)部?(bu)沒??(mei)有??(you)氣??(qi)室??(shi)的??(de)封??(feng)閉??(bi)空??(kong)間??(jian)??，不??(bu)可??(ke)能??(neng)直??(zhi)接??(jie)出??(chu)水??(shui)??。一??(yi)旦??(dan)出??(chu)現(xiàn)??(xian)問??(wen)題??(ti)??，后?(hou)果??(guo)難??(nan)料??(liao)??。

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