以吉林省白山市石碑岭隧道掘进中所进行的超前预报为例，介绍了地质雷达和地震反射波法在这一领域里的应用。
This paper gives an example of Shibeiling tunnel in Baishan city, Jilin, and introduces the GPR and seismic method .
本文以吉林省西部大安市为例，研究近20年来我国北方农牧交错带县域农业景观格局的变化情况。
Taken Da 'an city in the west of Jilin Province as a case, this article studies the landscape pattern of a county in the edge of arg-herd in the past 20 years.
本文以吉林省安图县为例，探讨旅游业对经济落后地区县域经济的影响及存在的主要问题，并提出对策。
In this paper, Antu county, Jilin Province, for example, the tourism industry to economically backward regions of the county and the economic impact of the main problems and propose countermeasures.
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