“混凝土外加剂”的概念、定义、翻译、参考文献-科学参考

单词	混凝土外加剂
释义	混凝土外加剂 Encyclopedia 工学混凝土外加剂释 concrete admixture混凝土外加剂在混凝土拌制之前或拌制过程中加入的、用以改善新拌混凝土和（或）硬化混凝土性能且不能对人、生物、环境安全及混凝土耐久性造成有害影响的材料。掺量一般不大于水泥重量的5%。
随便看	collecting and manipulating of Folk literature collecting area collecting canal collecting comb collecting lens collecting machine collecting potential collecting region Collecting Situation about Chinese Ancient Calligraphy and Painting collecting terms collecting tubule Collecting Works on Tea collection collection analysis collection census collection classification collection custody and collection department collection development collection development policy collection digitization collection efficiency collection evaluation collection features Collectiong of Cantonese Opera Star collection growth

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。