Polyester resins are the condensation products of polybasic acids and polyols 聚酯树脂是多元酸和多元羟基化合缩聚而成。
2.
Cr sbs mma ba polybasic graft copolymerization and adhesive properties of self - crosslinking copolymer 多元接枝共聚及自交联型接枝产物的粘合性能
3.
Historical teleplays in the polybasic culture circumstances - trying to analyze the types of historical teleplays on the continent in recent ten years 试析近十年大陆历史题材电视剧的几种类型
4.
In past years , the research on medical service quality of china focused on its evaluate methods and theory of exchanging marketing , polybasic extending and creativity 摘要对我国医疗服务质量的研究，过去大多集中在其评价方法的演变上，对其理论基础的分析仅限于交易营销、多元化扩张和创新力上。
5.
English learning diversified ： we have english classes in the early morning , class english drama , english curative teaches , english painting story book reading , english vacation camp etc . , polybasic english activities to arose children ' s abilities 英语学习多样化：晨间英语教学，班级英语话剧，英语补救教学，英语绘本导读，英语假期育乐营等，绵密的英语学习，激发孩子潜能。
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And production fashion is selected optional for assurance of the material character of hpch . the hpch material , in which the compound technique route of polybasic components is applied , has better properties such as high workability , high durability , low ion transference rate and so on 采用多组份复合技术路线配制出高工作性、高耐久性、低离子迁移率的hpch材料，对其宏观物理力学性能、耐久性能和微观结构进行了分析研究。
7.
We analyzed the present situation of the concept of quality of distance education and the root of the problems . we discussed in detail the concept of quality of polybasic distance education , pointing out the critical issues that the concept needs to address in actual practice 分析了远程教育质量观的现状及存在问题的根源,并对多元化远程教育质量观进行了较为详细的评述,提出了多元化远程教育质量观在指导实际工作中需重点顾及的问题。
8.
The results of performance testing showed that the additive of nano - powders can evidently enhance the latex coatings " weathering resistance , scratch resistance , water resistance and alkaline resistance , and do not reduce other performances ; polybasic nano - composite powders have more efficient than single nano - powder ; the dispersing method have biggish effect on performances . observing the stability of nano - additive of exterior latex coating showed there was no viscidity rising , no delaminatiom sedimentation in two months . tryout by plant showed that nano - weatherability additive can obviously enhance the weathering resistance of latex coating and water resistance , and no reducing other capabilities 对其性能研究的结果表明，纳米粉体材料的引入，可以明显提高乳胶漆的耐候性、耐洗刷性和耐水耐碱性能，对其它性能无不良影响；纳米多元复合粉体比单一粉体的改性效果明显；纳米粉体的添加工艺对改性乳胶漆性能有较大的影响，采用同普通填料一致的添加方式制备的试样与采用超声波预分散后在配漆阶段加入制备的试样相比，后者在稳定性、耐候性等方面的性能都有所提高。
9.
On the basics of briefly summarizing the research and application presents of building coatings and nano - composite building coatings in domestic and overseas , presented a creative approach of modified exterior building latex coatings applying inorganic nano - powders and its " compound . systematically studied the effect of factors such as nano - materials " category , additive capacity , dispersing method on the behavior of exterior building coatings " weathering resistance , scratch resistance , water resistance and alkaline resistance etc . studying on uv - vis optical property of nano - powder materials and its " compounds turned up that nano - tio2 , nano - sio2 , nano - zno have excellent characteristics to uv shielding ; dispersing system of polybasic nano - composite materials owned higher uv shielding capability than single disperse system 本文在简要叙述国内外建筑涂料和纳米复合建筑涂料的应用研究现状的基础上，提出了使用无机纳米粉体及其复合材料改性建筑外墙乳胶漆的创新思路，系统地研究了纳米粉体材料的种类、添加量、分散方式等因素对外墙乳胶漆耐候性、耐洗刷性以及耐水、耐碱性等性能的影响，成功地开发了纳米改性建筑外墙乳胶漆产品，并完成了外墙乳胶漆用纳米助剂的初步开发工作。
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