公路风吹雪防治棚洞的风洞实验研究
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Wind tunnel experimental study on shed tunnels to prevent and control blowing snow on highways
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图3. 洞口无防护措施(a)与有防护措施(b)的对比堆积实验 |
Fig. 3. Comparative stacking experiment without (a) and with (b) protective measures at the entrance |
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