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双层网盾状沙障防风固沙效益的风洞试验
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Wind tunnel test on windbreak and sand-fixing effect of double-layer net shield sand barrier
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图3. 风速测点(A)、集沙仪(B)和插钎位置(C) |
Fig.3. Wind velocity measuring point (A), sand sampler (B) and insertion position (C) |
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