“composite portland cement”的概念、定义、翻译、参考文献-科学参考

单词	composite portland cement
释义	composite portland cement Encyclopedia 工学水泥释 composite portland cement复合硅酸盐水泥以硅酸盐水泥熟料、质量百分比为20%～50%的两种或两种以上规定的混合材及适量石膏共同磨细制成的水泥。代号P·C。
随便看	closed convex hull closed convex hypersurface closed convex set closed convex surface closed covering closed current closed curve closed-curve problem closed cycle closed cycle engine closed-cycle refrigerator closed differential closed differential field closed differential form closed differential relation closed disk closed domain closed drain system closed-easy-axis closed economy closed ecosystem closed edge sequence closed edge train closed elastic drive closed element

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