内容发布更新时间 : 2024/4/19 19:22:15星期一 下面是文章的全部内容请认真阅读。

M0DERN TUNNELLING TECIIN0LOGY

aau.? sa 43 u re , ra?sa ?5 u?., v ?itsa 1 u?. . i

yaa?nnay.p

×cxa×i:ir ,c?sa×××a×+×,as?r?i

?×:?i?i?si,ir?s ÷s?.

F, , .±ixitc#'sia ,m?cor×osssz

r ×ae×zzx ÷i÷a i.x ??iiasnn

149 @ ( IDT2J ) ,2012 I(= 10 II i:6 Jifi Vol. 49 ( S) , Oct. 2012

NJ

?1994-2tJ 16 China Academic Journal Electronic Publishing House. All rights reserved.

http://www.cnki.net

8IODERN TUNNELLING TEClIIfOLOCIY

F ×a:tei×anss — ×a?.s,aa a. s÷s:n÷,ar×÷iu mex?:ia?xaie:ta

Vol. 49 ( S) , Oct. 2012

?1994-2tJ 16 China Academic Journal Electronic Publishing House. All rights reserved.

http://www.cnki.net

MODERN TlJNNEkklNG TEC11NOL0GY

Vol. 49 ( S) , Oct. 2012

?1994-2tJ 16 China Academic Journal Electronic Publishing House. All rights reserved. http://www.cnki.net