Welcome new and old customers call to buy culvert guidance. 歡迎新老客戶來電來涵選購指導。
The orthotropic properties of the corrugated steel culvert and the coupling between the culvert and the foundation are considered in the analysis. 在分析中，考慮了波紋鋼板的正交各向異性材料特性和地基管涵結構的耦合作用。
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