酒额铁路酒泉至东风段典型沙害区段风沙环境特征
李强

Characteristics of aeolian environment in typical sand-hazard sections along the Jiuquan-Dongfeng section of Jiuquan-Ejin Banner Railway
Qiang Li
图4 DK78(A)和DJK207(B)戈壁地表沙物质和DK105沙丘(C)沙粒机械组成
Fig.4 Mechanical composition of sand grains over gobi in DK78 (A) and DJK207 (B), and sand dune in DK105 (C)