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现代隧道技术 ![]() ![]() |
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富水条件下板溪群板岩隧道围岩分级研究 | ||||
(三峡大学防灾减灾湖北省重点实验室,宜昌 443002) | ||||
Surrounding Rock Classification of Banxi Group Slate with Abundant Water | ||||
(Hubei Key Laboratory of Disaster Prevention and Mitigation, China Three Gorges University, Yichang 443002) |
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