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![Concrete - Wikipedia, the free encyclopedia](https://www.iarticlesnet.com/pub/img/site/s_19.jpeg)
Concrete - Wikipedia, the free encyclopedia
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日期:2024-08-03
Concrete is a composite material composed of water, coarse granular material (the fine and coarse aggregate or filler) embedded in a hard matrix of material (the cement or binder) that fills the space among the aggregate particles and glues them together....看更多