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地鐵三號線植物園站支座更換…
了解詳情地鐵3號線施工平台搭建…
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了解詳情…
了解詳情…
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支座是橋梁上、下部結構的連接點,其作用是將上部結構的荷載安全地傳遞到橋梁墩台上去,同時保證上部結構在荷載、溫度變化、混凝…
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