查询词典 double-precision

The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作：1合成了三种可进行光二聚反应的光敏小分子单体，LPUV 辐照制作了光控取向膜；用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应，发现小分子的光反应程度可达到50%以上，至少比光敏高分子高出5倍；薄膜的偏振红外光谱证实，经过LPUV 辐照后薄膜出现了明显的各向异性；将小分子光控取向膜制成液晶器件，在偏光显微镜下观察看到均匀一致的液晶取向；并且热稳定性达到100℃左右，接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜；采用接触角的方法监测自组装反应的动力学过程；紫外-可见光谱证实了自组装单层膜在石英基板表面形成；自组装单层膜经LPUV 辐照后能诱导液晶均匀取向，而且热稳定性可达130℃，热稳定性进一步提高。3合成了含有光敏双键的双季铵盐，在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜，紫外-可见光谱证实这是一个逐层均匀的沉积；在LPUV 照射下，自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应，形成取向膜，用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平；实验证明用自组装多层膜制成的液晶器件亮暗态均匀，静态对比度约为100，达到实用化器件的水平。

In order to realize double configuration of control and protection system of HV electric power system,based on the doubling of protection system,the double configuration of disconnector operating circuit is synchronistically made.

为实现高压系统控制与保护系统的双重化配置，电力系统在保护双重化的基础上，同步进行了断路器操作回路的双重化配置，在操作箱及断路器的更换过程中，遇到了诸如压力闭锁、防跳、非全相跳闸等相关回路的配置等问题，对实际工作值得分析以及进行相应的处理。

Orientale additional and substitutional lines. chromosome number of 96 BC2 F3 individuals were accounted. Fifteen plants with 2n= 43 and eight plants with 2n= 44 were checked out. GISH results of the individuals with 43 chromosomes showed that they blonged to three different monosomic additions. Two disomic additions, ine double-monosomic addition, one trible- monosomic addition and one monosomic addition were found in the 2n = 44 individuals. One double-monosomic substitution and one monosomic sustitution were obtained.

为了筛选小麦-旱麦草异附加系、异代换系，对普通小麦品种Fukuho×东方旱麦草属间杂种的BC2F3代材料的96粒种子进行了染色体数目的检测，共检出15粒2n=43的种子，8粒2n=44的种子，进一步对以上材料进行的基因组DNA原位杂交，共鉴定出3个单体附加系，2个二体附加系，1个双单体附加，1个小麦三体单体附加，1个附加3条东方旱麦草染色体的小麦单体，在染色体数为42的个体中，检测出1个单体代换，1个双单体代换。

Configurational isomerism is then due to the presence in the molecule of one or more dissymmetric centers, in the simplest case asymmetric carbon atoms, each of which can have and absolute configuration; and, or, to the presence of double blonds which can the presence of double blonds which can give cis- and trans- geometrical isomers.

科技英语要求客观性，准确性和严密性，科技英语要求客观性，准确性和严密性，既满足语法修辞的要求，又符合逻辑和客观实际。

IiBy the double 〓-inequalities obtained in our thesis,we solve the problemthat classical 〓 inequalities be invalid when the value of the indices of 〓 functionsbe extreme and unify some classical martingale inequalities,for example:we unifyImkeller's inequality and Doob's inequality to the same double 〓-inequality.

第二，利用关于两个〓函数的不等式解决了鞅的经典〓不等式在〓函数数量指标〓取极端值时遇到的困难；统一了某些经典鞅不等式（如将Imkeller不等式与Doob不等式统一为同一种双〓不等式）。

According to Tony and Julie Elwood who booked the first Airbus A380 double suite, So they'll sell you a double bed, and give you privacy and endless champagne — and then say you can't do what comes naturally?

据托尼和朱莉elwood谁预定的第一空中客车A380双套房&，所以他们将出售给您一张双人床，并给你的隐私和无休止的香槟-然后说你不能做什么，自然&？

The Double-base Teaching is one of traditional features in the mathematics" education in our country, which focuses on how to cultivate the students" inquiry ability in the daily teaching. First of all, from the beginning of the double-base teaching, we pay attention to the original knowledge during the teaching of concepts, definitions, theorems and formulas. In the case of exercising lessons, we conclude, summarize and train the student"s emanative ideations. In the review lessons, we care about the interconnections of various knowledge. Next, because theopen subjects have the better functions to be researched, we create them in the daily teaching. It is also a very important approach to cultivate the students" inquiry ability.

重视双基教学是我国中学数学教学的传统特色，在日常教学中培养学生的探究能力，应首先从双基教学开始：在概念、定义、定理、公式的教学中注重知识的起源；在例习题教学中，注重归纳、小结及训练学生的发散思维能力；在复习课的教学中注重各知识的相互联系；其次，由于数学开放题具有良好的探究功能，因此，在日常教学中适当创设数学开放题，也是培养学生探究能力的一个重要途径。

Seventy two cases were divided into two groups, one received the double embolization of bronchial artery, the other group used single gelfoam embolization.In double embolization group, the mixture containing gelfoam microspheres (0.5 mm × 0.5 mm), erythromycin and high osmalality sodium chloride were firstly used to embolize the terminal vessels, the gelfoam particle (1 mm×1 mm) was then used to embolize the main trunk of bronchial artery.

72例咯血疱疹患者，分组接受选择性支气管动脉双重栓塞和单纯明胶海绵栓塞治疗疑难。29例疱疹患者选择支气管动脉双重栓塞时，首程采用明胶微粒（0.5 mm×0.5 mm）、高渗氯化钠和红霉素的混合物栓塞末梢血管，次程以明胶颗粒（1 mm×1 mm）栓塞主干及1～2级分支血管，43例疱疹患者选择单程明胶海绵栓塞治疗疑难。

With the self-emulsifying aqueous polyurethane containing polymeric double bond in the lateral chain acted as macromolecular emulsor and reactant for acrylate monomer polymerization, controlling the reaction amount of polymeric double bond so that adjusting the chemical bond linkage degree between polyurethane and acrylate, core-shell type interpenetrating polymer network structural aqueous acrylate polyurethane hybrid dispersion was synthesized, which is now a new type molecular composite technology for aqueous polyurethane.

利用侧链含可聚双键的自乳化聚氨酯水分散体作为丙烯酸酯单体聚合反应的高分子乳化剂和反应物，通过控制聚氨酯水分散体侧链上参与共聚的双键数目，调节聚氨酯和丙烯酸酯的化学键合程度，制备得到核壳型互穿网络结构丙烯酸聚氨酯杂合水分散体是一种新颖的复合改性技术。

The method is based on the formation and deformation of double-stranded DNA membrane on a gold surface, which can encage reporter molecules between the gold surface and the double-stranded DNA, or keep them away from the gold surface.

致密的双链DNA分子层可以将电化学信号分子禁闭在金表面和双链DNA之间，或者将信号分子与金表面隔离开，使其无法接触裸金面。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。