| 释义 |
混凝土hùnníngtǔ一种建筑材料,用水泥、砂、石子和水按比例拌和而成,具有耐压、耐水、耐火、可塑性等性能。{concrete; building material made by mixing cement, sand, gravel and water in certain proportions, resulting in a pressure-resistant, water-resistant, fire-resistant substance which can be moulded} |