释义 |
ordinary portland cement短语¹³¹⁶²⁰⁺³ 基本例句 普通硅盐水泥 The results showed that alkali- activated fly- ash cementing material has good sulphuric acid resistance and low bulking factor and high drying shrinkage against ordinary Portland cement. 结果表明:与水泥相比,碱激发粉煤灰胶凝材料具有良好的抗硫酸侵蚀性、湿胀小、干缩大。 dictall |