查询词典 lithium

In order to find a technique that can obviously improve the strength of magnesium-lithium alloy ,an alpha-beta biphase coexistent magnesium-lithium alloy was designed according to the Mg-Li phase diagram and the effect of Al.

为了找到一种可以显著提高镁锂合金强度的工艺，根据镁-锂二元合金相图及铝元素在合金中的作用，设计了一种α、β两相共存的镁锂合金(Mg-6Li-3Al)，并进行了挤压和轧制；用光学显微镜和X射线衍射仪对合金不同状态的组织及性能进行了研究。

Dimethyoxyphenyl Lithium and 2,4,6-trimethoxyphenyl Lithium could also react whth γ-butyrolactone to produce -hydroxypropyl 2,4-dimethoxyph

2，4-二甲氧基苯基锂和2，4，6-三甲氧基苯基锂也能与γ-丁酸内酯反应分别生成γ-羟丙基-（2，4-二甲氧基苯基）酮和γ-羟丙基-（2，4，6-三甲氧基苯基）酮。

The squaric acid, croconate acid, salicylic acid which contain hydroxy can form a big integration anion with Boron, assemble many lithium salts combining with the lithium ion which should have novel structure and a good electrochemical property.

方酸、克酮酸、水杨酸由于含有羟基，能与B形成大螯合阴离子，从而与锂离子可以组装成许多具有新颖结构和良好电化学性质的锂硼盐电解质。

Oweing to the suitable coefficient of thermal expansion and refractive index of lithium disilicate crystals, lithium disilicate glass-ceramics could obtain high mechanical strength and translucent effect simultaneously, which show a brilliant future in dental aesthetic restorations. The purpose of the study was to investigate the effects of glass composition, content of P2O5 and heat treatment procedures on microstructure and properties of final glass-ceramic products.

二硅酸锂晶体具有适宜的热膨胀系数和光折射系数，与玻璃相能够达到良好的热力学和光学匹配，使得二硅酸锂玻璃陶瓷在具备较高机械性能的同时，仍能保持优秀的半透光特性，实现了高强度和美学效果的统一，在全瓷美学修复领域具有广阔的应用前景。

It was concluded that P2O5 was an effective nucleating agent for this glass system. The nucleation density of this glass system was too low to form tiny crystal after heat-treatment, when it contained no P2O5, and the major crystal phase was lithium silicate. Adding P2O5 resulted in major tiny crystal phase of lithium disilicate after heat-treatment.

结果发现P2O5是该玻璃体系的有效成核剂，未添加P2O5的玻璃体系成核密度低，热处理后不能形成微晶体，且主晶相为硅酸锂；添加P2O5使玻璃在热处理后形成以二硅酸锂为主晶相的微晶玻璃。

O methoxy phenyl lithium reacts with 6,6 dimethyl fulvene to give ligand lithium (Cp ′Li,Cp ′ represents cyclopentadienyl with substituents).

邻甲氧基苯基锂和 6，6-二甲基富烯(或 6，6-二乙基富烯)反应得配体锂盐，Cp′ Li直接和 Cp Zr Cl3· DME反应生成 2个新的锆络合物 Cp′ Cp Zr Cl2 。

Lithium delayed time to intervention for manic/hypomanic/mixed but not for depressive events. At 18 months of treatment, interventions for depression were needed in 43% of patients on lamotrigine, 49% of patients on lithium, and 60% of those on placebo.

锂可以延长狂躁症、轻度狂躁症、混合型狂躁症患者治疗干预的时间间隔，但对抑郁症患者没有效果，经过为期18个月的治疗，有43％的接受lamotrigine治疗的患者、49％接受锂治疗的患者，和60％的服用安慰剂的患者还需要接受抑郁症的干预治疗。

This study investigates lithium and lithium isotopic composition in the main tributaries and the main Yangtze river channel.

研究集中在长江干流和主要支流的水体和悬浮物的锂及锂同位素组成。

With the development of photoelectron technology, the role of lithium niobate crystal is more and more important. The need of ultra-precision device, made with lithium niobate crystal, increased steadily.

随着光电子技术的发展，铌酸锂晶体在行业中的作用越来越重要，利用铌酸锂晶体制作超精密元器件的需求与日俱增。

The invention is characterized in that absorbing agent is a multivariate compound salt which is formed by lithium nitrate, sodium thiocyanate and lithium rhodanate.

多元复合盐/氨溶液吸收制冷剂，它包括吸收剂和制冷剂，所述制冷剂为氨，其特征在于所述吸收剂为硝酸锂、硫氰酸钠和硫氰酸锂组成的多元复合盐。

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。