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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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