...残余强度因子 聚丙烯纤维 磨细粒化高炉矿渣 扫描电镜 水工混凝土[gap=1521]Key words: flexural strength; toughness index; residual strength factor; hydraulic concrete polypropylene fiber; ground granulated blast furnace slag（G..
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短语
残余应力强度因子
residual stress intensity factor