高海拔冻土区通风管路基管内风速及影响因素研究
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Characteristics and influence factors of wind speed in ventilation duct of ventilation duct embankment in high altitude permafrost regions
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图9. 不同通风管外伸长度下管口流线示意图 |
Fig.9. Schematic diagram of streamline under different ventilation duct extension lengths of 0 m (a), 1.6 m (b) and 2.6 m (c) |
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