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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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