综述

This review deals with the advances of their synthetic methods and applications in asymmetric catalysis in recent years.

本文综述了近年来其合成方法及其在不对称催化反应中应用研究的进展。

The application and mechanism of heterogeneous catalytic ozonation process were reviewed in this paper.

该文综述了该技术在水处理中的应用及其反应机理。

This paper reviews the types of catalyzer of coal gasification,and introduces the catalysis of metal compounds.

综述了煤气化反应催化剂类型，介绍厂金属化合物的催化作用。

The researches on data gaps at home and abroad were summarized. Based on an introduction of catastrophe theory, the development and current research o...

本文总结了数据间隙的研究，介绍了突变理论的基本内容，综述了国内外应用突变理论解决交通流数据间隙问题的研究历史和现状，展望了突变理论应用的前景。

Traffic engineering, data gap, review, catastrophe theory, traffic flow theory

交通工程，数据间隙，综述，突变理论，交通流理论

The researches on data gaps at home and abroad were summarized. Based on an introduction of catastrophe theory, the development and current research on the application of the theory in traffic flow theory were generalized. Furthermore, the application prospect of the theory was forecast.

本文总结了数据间隙的研究，介绍了突变理论的基本内容，综述了国内外应用突变理论解决交通流数据间隙问题的研究历史和现状，展望了突变理论应用的前景。

The researches on data gaps at home and abroad were summarized. Based on an introduction of catastrophe theory, the development and current research on theory application to traffic flow theory were generalized. Furthermore, the prosperity of theory application was forecast.

总结了数据间隙的研究，介绍了突变理论的基本内容，综述了国内外应用突变理论解决交通流数据间隙问题的研究历史和现状，展望了突变理论应用的前景。

The progerss in production and process research of hydroquinone and catechol were reviewed, and suggested that the composite oxide catalysts are the applicable catalysts in our country.

综述了邻苯二酚与对苯二酚的生产与研究现状，提出了复合氧化物类催化剂是适于我国国情的实用催化剂专利。

The article in recent years the research progress of disease of oral cavity of TP prevention and cure makes one overview. The compositive TP of the basic research 1.1 TP of 1 TP is the floorboard that phenolic apperception of a kind of many hydroxyl closes matter, 25% what hold tea dry weight about, its are main component includes to express gallnut of gallnut catechu element gallnut of element of catechu of gallnut of acerbity ester, watch, watch catechu element is acerbity element of catechu of ester, watch, express gallnut of gallnut catechu element among them acerbity ester content is highest, occupy the 80%[1] of catechu element about, fighting oxidation with its unique element structure, fight the position with fight the respect such as tumor to have choppy, significant. The 1.2 TP absorption in oral cavity and metabolization Lee [2] is measured normally inside a hour after healthy person is chewing green tea Xie Huo contains juice of gargle green tea, content of the TP in saliva is very high, after observing green tea passes salivary enzymatic hydrolyze, TP is slow release and in oral cavity;Yang of local play action [the salivary level after 3] checked 6 volunteers to drink tea, chroma of the TP in making clear the saliva after drinking tea as a result is serous TP pH indicator 2 times, and the salivary TP concentration that contains gargle tea solution a few minutes to be able to produce higher level, and TP can be absorbed through oral cavity mucous membrane.

本文就近年来TP防治口腔疾病的探究进展作一综述。1 TP的基础探究1.1 TP的组成TP是一类多羟基酚类化合物的总称，约占茶叶干重的25%，其主要成份包括表没食子儿茶素没食子酸酯、表没食子儿茶素、表儿茶素没食子酸酯、表儿茶素等，其中表没食子儿茶素没食子酸酯含量最高，约占儿茶素的80%[1]，并以其独特的分子结构在抗氧化、抗突变、抗肿瘤等方面占有重要的地位。1.2 TP在口腔中的吸收和代谢Lee等[2]测得正常健康人在咀嚼绿茶叶或含漱绿茶液后的一个小时内，唾液中TP含量很高，并观察到绿茶通过唾液酶水解后，TP缓慢释放并在口腔局部发挥功能；Yang等[3]检查了6位志愿者饮茶后的唾液水平，结果表明饮茶后唾液中TP浓度是血浆TP浓度的2倍，而含漱茶溶液几分钟即可产生更高水平的唾液TP浓度，且TP可通过口腔黏膜吸收。

By taking granite porphyry from the Jiama Porphyry Copper Deposit in Tibet for example, this paper briefly introduces the image characteristics of scanning electron microscope cathodoluminescence and optical microscope cathodoluminescence, and summarized the application of quartz cathodoluminescence in study of igneous rock.

文章以甲玛斑岩铜矿床中岩体样品分析为例，简要介绍了光学显微镜阴极发光和扫描电镜阴极发光两种图片的特点，并综述了石英阴极发光在火成岩研究中的应用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。