“普通混凝土结构”的概念、定义、翻译、参考文献-科学参考

单词	普通混凝土结构
释义	普通混凝土结构 Encyclopedia 工学混凝土结构释 ordinary concrete structure普通混凝土结构以普通混凝土为主要材料建造的土木工程结构。普通混凝土（简称混凝土）是以水泥为胶结材料，以天然砂、石为骨料加水拌合，经过浇筑、凝结硬化形成的固体材料。为改善混凝土拌和物或硬化混凝土的性能，还可在其中加入各种外加剂和掺合料。其干表观密度为2000～2500千克/米3。普通混凝土结构在建筑工程中广泛使用。
随便看	protected areas planning protected areas public participation protected area with sustainable use of natural resources protected cultivation of fruit trees protected cultivation of ornamental plants protected data storage Protected Landscape/Seascape protected mode of rare and endangered medicinal resources protected soil cultivation protecting creditors’ interest principle protecting group protecting multiple interest principle protecting wire net protection Protection and Maintenance of Ancient Chinese Architecture protection and maintenance project of Zhashilunbu Temple in Tibet protection and maintenance system protection and management of landscape rockery protection and restoration of ancient clock relics protection and restoration of concrete protection area protection area of railway safety Protection/control of military stress injury protection danger protection design of orifice

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