Effect of Vibration on Air Content of Mass Concrete. E A Spuehler,Kieren J Mather, Thomas B Kennedymag(1952)引用 24|浏览3暂无评分关键词vibration,nondestructive testing,mixtures,sampling,concrete,petrography,airAI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要