采煤沉陷区输电铁塔复合防护板基础抗变形性能及其板厚取值研究
채매침함구수전철탑복합방호판기출항변형성능급기판후취치연구
Research on the Composite Foundation Anti-deformation Performance and Optimal Thickness of Electricity Transmission Towers in Mining Subsidence Area
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