氟化的

A photoresist composition including a polymer is disclosed, wherein the polymer includes at least one monomer having the formula: wherein, R1 is selected from H, linear, branched or circular alkyl with 1-20 carton atoms, linear, branched or circular alkyl with 1-20 C atom, which is perfluorinated or semi-perfluorinated; and CN; R2 is alicyclic group with 5 or more carbon atoms; X is selected from methylene, aether, ester, amide and the connecting part of the carbonate; R3 is linear or branched alkylene with one or more carbon atoms or perfluorinated or semi-perfluorinated linear or branched alkylene; R4 is selected from H, CH3, CF3, CHF2, CH2F and perfluorinated or semi-perfluorinated aliphatic group; R5 is selected from the CF3, CHF2, CH2F and perfluorinated or semi-perfluorinated substituted and unsubstituted aliphatic group; n is 1 or higher integer; OR12 is OH or at least an acid unstable group selected from the tert-alkyl carbonate, tert-alkyl ester, tert-alkyl aether, acetal and ketal.

本发明公开了一种包含一种聚合物的光刻胶组合物，该聚合物包括至少一种具有下列结构的单体：其中，R 1 选自氢、具有1～20个碳原子的线形、支化或环状烷基、半氟化或全氟化的具有1～20个碳原子的线形、支化或环状烷基、以及CN；R 2 为具有5个或更多个碳原子的脂环基团；X为选自亚甲基、醚、酯、酰胺和碳酸酯的连接部分；R 3 为具有1个或多个碳原子的线形或支化亚烷基或者半氟化或全氟化的线形或支化亚烷基；R 4 选自氢、甲基(CH 3 )、三氟甲基(CF 3 )、二氟甲基(CHF 2 )、氟代甲基(CH 2 F)、以及半氟化或全氟化的脂族基团；R 5 选自三氟甲基(CF 3 )、二氟甲基(CHF 2 )、氟代甲基(CH 2 F)、以及半氟化或全氟化的取代或未取代的脂族基团；n为1或更大的整数；OR 12 为OH或者选自叔烷基碳酸酯、叔烷基酯、叔烷基醚、缩醛和缩酮的至少一种酸不稳定基团。

This paper reviewed the relationship between fluoridated milk and dental caries prevention derived from the preceding academic research. Several topics, including milk fluoridation, fluoridated milk in animal and human clinical studies, the effect of fluoridated milk to fluoride concentration in saliva and dental plaque, the bioavailability of fluoridated milk, and the effect on human teeth were discussed.

本文回顾有关牛奶与龋齿间关系以及牛奶氟化以预防龋齿的文献，从牛奶氟化的最初想法，到氟化牛奶的动物实验、人类临床实验，进一步研究对唾液、牙菌斑中含氟量的影响，以及氟化牛奶的生物可得性，最后探讨对人类牙齿的抗酸溶解力的改变。

The orthogonal design method is used for preparation of rare earth fluoride by rare earth oxide(Gd_2O_3) fluorination with NH_4HF_2 in this paper.

采用正交试验法，研究了用氟化氢铵作氟化剂直接与稀土氧化物(Gd2O3)反应，制备稀土氟化物的工艺，确定了氟化的最佳工艺条件，并进行了分析讨论。

An abnormal condition caused by excessive intake of fluorine, as from fluoridated drinking water, characterized chiefly by mottling of the teeth.

氟中毒由于过量摄入氟而导致牙齿产生色斑的不正常状况，如饮用氟化的水

An abnormal condition caused by excessive intake of fluorine ,as from fluoridated drinking water,characterized chiefly by mottling of the teeth.

氟中毒由于过量摄入氟而导致牙齿产生色斑的不正常状况，如饮用氟化的水全氟胍可以由于的三聚氰酰胺，用5%的氟在约－16℃直接进行氟化制得。

Although they may also be used with fluorinated solvents, we suggest that you investigate our High Performance Degreasing Equipment for those applications.

尽管仍有人会使用氟化的溶剂，但我们建议您在High Performance脱脂机上使用氟化的溶剂。

The influence of CFC-12 content, effect of fluorination temperature and fluorinating time on the structure and hydrodesulfurization activity of the catalysts were examined systematically. The results revealed that hydrodesulfurization activity of the catalyst fluorinated by 1% CFC-12 at 623 K was obviously improved With an increase of 20%-30% as compared With that of the unfluorinated catalyst, the commercially available BY2 catalyst, and NH4F-fluorinated catalysts.

通过对0.5%~7%各种氟里昂浓度和473~773K各种温度及不同时间氟化处理的样品进行详细考察，发现在623K下由含氟里昂1%的湿空气氟化的载体制备的催化剂样品，其噻吩的加氢脱硫的活性有明显改善，相对於非氟化样品、BY-2工业催化剂以及氟化铵溶液浸渍处理的催化剂活性提高20%~30%，且非常稳定。

Of,relating to,or being one of the pointed conical teeth located between the incisors and the first bicuspids.

氟中毒由于过量摄入氟而导致牙齿产生色斑的不正常状况，如饮用氟化的水

The recent developments of polymer fiber are described discribed, deuterated and perfl uorined polymer fiber for decreasing loss, and the graded index polymer fiber fo r increasing bandwidth are introduced.

本文综述国内外聚合物光纤的最新进展，介绍降低聚合物光纤损耗的氘化和氟化的方法，提出宽带的梯度折射率聚合物光纤。

Teflon: Trademark for a polymer of tetrafluoroethylene fluorocarbon.

铁氟龙：四氟乙烯或氟化的乙烯－丙烯的聚合物的商标名。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐