锂

In this thesis, the polymerization of triblock copolymer of styrene-butadiene-methyl methacrylate was carried out in glass flask ,with n-BuLi as initiator, 1,1-diphenylethylene as capping agent and Lithium 2(2-methoxyethoxy) ethoxide as additive.

本论文以n-BuLi为引发剂、1，1-二苯基乙烯为戴帽剂、2-(2-甲氧基乙氧基)乙氧基锂为添加剂，对玻璃聚合瓶中非极性-极性三嵌段共聚物聚苯乙烯—聚丁二烯—聚甲基丙烯酸甲酯的合成进行了研究。

This paper details the properties and characteristics of the β-eucryptite glass-ceramics with negative CTE (Coefficient of Thermal Expansion) that have been developed to bond to substrates for compensating the thermal variations in fiber Bragg gratings.

本论文以研发能够应用于光纤布拉格光栅温度补偿的材料为目的，开展了负膨胀β-锂霞石微晶玻璃的制备与表征。

Then,the research progress of high SiC paniculate volume content aluminum matrix composites and aluminum matrix composites reinforced with eucryptite ,with zirconium tungstate and with quasicrystalline particles are reviewed respectively.

综述了低热膨胀铝基复合材料的研究现状，对高体积分数 SiC 颗粒增强铝基复合材料、锂霞石颗粒增强铝基复合材料、钨酸锆颗粒增强铝基复合材料和准晶颗粒增强铝基复合材料的研究状况进行了详细的阐述。

And by mean of DTA, XRD, SEM techniques, the research work emphasized on the crystal phases structure, thermal expansion, and mechanics capability of the β-eucryptite glass-ceramics.

通过DTA、XRD、SEM等研究手段，对β-锂霞石负膨胀微晶玻璃析晶性能、显微结构、热膨胀性能及力学性能等问题开展了较深入的研究。

In the source, lithium ions are extracted from a heated emitter (β- Eucryptite), focused by a electrostatic lens, and neutralized in a charge -exchange cell by sodium atoms.

它是从锂霞石热发射体上引出离子，经静电透镜聚焦，在中和室与钠原子进行电荷交换，通过离子偏转最后获得中性束。

The main objective of this thesis is to investigate the formation and properties of negative thermal expansion glass-ceramics containing β-eucryptite. The effects of composition modification (SiO2 content, the kinds and amount of nucleation agents, excess Li2O) on CTE were also examined.

在锂铝矽酸盐(lithium aluminosilicate，Li2O-Al2O3-SiO2，简称LAS)系统中的固溶体β–eucryptite相具有负热膨胀系数，其与正膨胀性的精密元件复合，可藉由应力补偿，控制该元件的尺寸变化，以防性质变异。

Because of strong thermal expansion mismatch between the glass matrix and β-eucryptite phase in NEGC, the micro structure of the glass - ceramics changed (e.g. formation of microcracks) with the variation of temperature environmental,resulting in thermal hysteresis.

因锂铝矽酸盐负热膨胀系数玻璃陶瓷中之玻璃母相与β–eucryptite相之热失配效应过大，导致基材於升降温过程结构改变，所引发的热迟滞现象十分显著，其间接影响热补偿元件应用寿命，故本实验另一研究为观察此基材中迟滞现象的变化。

The possible mechanisms that the power system of electric vehicles hurts passengers were analyzed in the paper, including electric injury, chemical injury, burning injury, and etc. The reasons that cause these injuries were analyzed in detail. The safety characteristics of the batteries that electric vehicle is in common use, such as excide battery, MH-Ni battery, Li+ battery, and fuel battery, are researched.

本文重点分析了电动汽车动力系统可能对乘员产生的各种伤害，包括电动汽车的电伤害、电动汽车电池的燃烧爆炸伤害、电池电解液的泄漏和电池有害气体释放引发的伤害等方面，具体分析了它们产生的原因和可能引起的后果；研究了电动汽车几种常用动力电池的安全特性，包括铅酸电池、镍氢电池、锂离子电池和燃料电池，以及它们各自可能存在的安全隐患和产生安全问题的机理。

A with under strong base butyl Lithium, Wittig reaction was carried out, after cast off extremital 2,3-dihydropyran which protected hydroxy group, then 5,14-gadoleyl-1-ol was obtained.

a与在强碱正丁基锂的作用下进行Wittig反应，然后脱去末端的2，3-二氢吡喃保护基，得到5， 14-二十碳二烯醇。

The main products are inorganic fluoride, with the integrated capacity of 150 thousand tons per year, our main products are: synthetic cryolite, aluminium fluoride, sodium fluoride, silica white, hydrofluoride, potassium fluoroborate, potassium fluotitanate, potassium aluminium fluoride, magnesium fluoride, barium fluoride, lithium fluoride ,potassium fluoride, magnesium fluorosilicate, potassium fluorosilicate, potassium fluorosilicate etc.

多氟多公司生产区多氟多化工股份有限公司，公司注册资本8000万元，为河南省高新技术企业，是中国最大的无机氟化盐生产基地之一。综合产能15万吨/年，主要产品有冰晶石、氟化铝氟化钠、白炭黑、氢氟酸、氟硼酸钾、氟钛酸钾、氟铝酸钾、氟化镁、氟化钡、氟锆酸钾、氟化氢铵、氟化铵、氟化钾、氟化锂、氟硅酸钠、氟硅酸钾、氟硅酸镁等。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。