cored slab 中文意思是什麼
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Optimal analysis of slab thickness for prestressed cored slab jointless bridge
無伸縮縫預應力空心板橋板厚優化分析研究 -
Test method of concrete compressive strength for extrution hollow cored slab
擠壓成型空心板用混凝土抗壓強度.試驗方法
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