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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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