不同地表条件下青藏公路对多年冻土的热影响差异研究
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Study on the diversities of thermal impacts of Qinghai-Tibet Highway on permafrost under different surface conditions
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图6. 两个监测场地L1处2015—2021年活动层厚度变化情况 |
Fig.6. Active layer thickness variations in L1 for both sites from 2015 to 2021 |
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