science n. 1.科学;科学研究。 2.(一门)科学,学科。 3.自然科学。 4.学;学问;〔古语〕知识。 5.(拳术、马术等的)技术,专门技巧。 6.〔有时作 S-〕信仰疗法,基督教精神疗法〔又称 Christian S-〕。 the pure science 纯理论科学。 the science of history 历史学。 social science 社会科学。 the most advanced branches of science and technology 尖端科学技术。 physical science 自然科学,物理(科)学。 natural science 自然科学。 borderline [boundary] science 边缘科学。 science and learning [scholarship] 自然科学和人文科学;学术;学艺。 the Academy of S- 科学院。 a man of science 科学家。 a bachelor of science 理学士。 a doctor of science 理学博士。 the noble science (of defence) 自卫术,拳术,剑术。
Consequently concrete production practices are now being conducted by relying on more experiences or trial and error than related theory . so the study on the interfacial chemistry phenomena and rheological properties of the “ cement - water - superplasticizer ” system is in active demand . the systematical study on the interfacial properties and their influence factors based on the theory of colloidal science , interface chemistry , chemistry of cement and polymer science were conducted in order to establish the relationship among interfacial properties , microstructure and rheological characteristics of “ cement ? water - superplasticizer ” system , and provide the theoretical guide for the manufacture and applications of cement , concrete and superplasticizers 本文选择“水泥-水-高效减水剂”系统的界面化学现象和流变特征作为研究课题,旨在通过深入系统地研究水泥与高效减水剂在水介质中的一系列界面化学现象及其影响规律,利用胶体化学、界面化学、水泥化学和高分子化学的相关基础理论,分析水泥与高效减水剂的相互作用机理,确定系统中界面化学现象、系统微观结构和流变特性的关系,指导水泥、混凝土及外加剂的生产实践。