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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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