Nowadays, the progress of expressway is very quick, but there still are some problems .How to survey and treat tunnels in roadbase is one important task.

 
  • 目前高等級公路的建設進(jìn)入了蓬勃發(fā)展的時(shí)期,但在工程建設中關(guān)于路基暗穴病害探測與處理仍是急待解決的一個(gè)重要課題。
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