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?????12??????????????2????? (???????????? ?)2?????????????,???????????????????“????”?????????(TBM)??????????4????????????8????????,?TBM?,??????????????????TBM?????????????????????

12?2???????,?TBM“??”????

????,“?”TBM??,???????,??12.23?,?160????,????????????????????????????2800???????????????????????????????????????,????????????????????????,???????????????????????,?,???????????????20%??40%?

??12?????2?????????,??????????????????????3.3?????????????????,?????14.9?????????????,10??????????????TBM?????????4???????????,?????2??

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