7.13 Natural construction materials

所属栏目:中小型水力发电工程地质勘察

7.13.1 Investigation for natural construction materials shall includethe following contents.(1) Detailed investigation of natural construction materials shall beconducted on the basis of investigation results at pre-feasibility studystage.(2) Investigatio ......(本文共 632 字 )     [阅读本文] >>


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