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0200015954 20030327161633.0 030327s coua fr |00||||eng (pbk.) : CNY174.10 NGL a-kz--- a631 Ellefsen, Karl J. 哈萨克斯坦杰格连山160隧道收集的地震层析数据处理. chi Processing of seismic tomography data collected at tunnel 160, Degelen Mountain, Kazakhstan / by Karl J. Ellefsen and William Leith. [Denver, CO] : U.S. Geological Survey, 1999. iv, 17 p. : ill. ; 28 cm. Open-File Report / U.S. Geological Survey ; 99-532 Seismic tomography Kazakhstan. aLeith, William. aCN bNGL NGL EB00063277 r¥174.10 631 Ez9 ayl b1 eyll0303