建筑与基础设施 / Construction and Infrastructure
混凝土
Concrete混凝土（Concrete）是实际应用层中的真实知识点；参考资料将其年代记为公元前 6500 年。
- Knowledge type
- 实际应用
- First proposed or discovered
- -6500
- Proposer
- 历史记录与科学共同体
- Creator
- Polytech Tree dataset
- Last updated
- 2026-10-12 07:25:30
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Higher-order knowledge points
Main parameters and performance indicators
重要度：1参考分类：建筑与基础设施
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Related literature
ranked by community starshttps://en.wikipedia.org/wiki/ConcreteOpen source
https://github.com/secwind7/polytech-treeOpen source
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