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A transparent emerald-green variety of spodumene, used as a gemstone.

翠绿锂浑石一种透明的黄色到绿色的锂辉石,是一种宝石

Starting from the crystallographic data of lithium niobate and lithium tantalate crystals, structural characteristics and chemical bonding behaviors of both crystals are studied.

从铌酸锂和钽酸锂晶体的结晶学数据出发,分析其结构特征和组成化学键的结合情况。

The Company production of lithium thionyl chloride batteries, lithium manganese dioxide battery series have stereotypes applied to military, industrial and civilian areas such as the various forms of electronic instruments and equipment.

本公司生产的锂亚硫酰氯电池、锂二氧化锰电池系列已定型应用于军事、工业与民用等领域中的各种电子仪器设备。

Extensive experimentation revealed several issues, along with several corresponding solutions:(1) given that lithium metal dissolves slowly in liquid ammonia, considerable time was required to generate the dissolved metal solution (ca. 1 h);(2) the t -BuOH must be freshly distilled prior to use 21 to diminish the formation of ketone 19 (Figure 2);(3) efficient capture of the lithium enolate ( 11 ) required the use of freshly distilled TMSCl and Et 3 N; and (4) the presence of residual thiophenol upon workup was found to inhibit the subsequent Sc 3 -promoted hydroxymethylation.

大量实验揭示若干问题,随着几个对策 1鉴于锂金属溶化慢慢液氨、需要相当多的时间创造了金属溶液溶解(约占1小时);(2) T恤使操作必须事先用新鲜蒸馏水形成酮减少2119(图2);有效捕获的锂烯醇(11)使用新鲜蒸馏水需氯和ET三氮;含有残余硫workup经发现抑制随后推选3-羟甲晋升。

The intermediates were coupled respectively with derivatives of gallic acid to give polysubstituted diphenylmethane.

发现邻甲氧基苯甲酸甲酯中酯甲基可以被正丁基锂和仲丁基锂中烷基交换生成相应的酯,反应的机理不明确。

Formylation and diformylation of dithieno [2,3-b:3',2'-d] thiophene were prepared by two methods. Firstly, aromatic carbanions were prepared by 1 Br/Li exchange of bromo dithieno[2,3-b:3',2'-d]thiophene with n-BuLi in THF at low temperature; 2 deprotonation of dithieno[2,3-b:3',2'-d]thiophene with LDA.

二噻吩并[2,3-b:3',2'-d]噻吩单醛与双醛的制备首先通过两种方法产生芳基负离子:1溴代并三噻吩在四氢呋喃中与正丁基锂发生的溴锂交换;2用LDA对二噻吩并[2,3-b:3',2'-d]噻吩去质子化作用。

The object in this study is intercrystalline brine from a salt-lake in Qinghai (Mg/Li=60~70). Taking into account of comprehensive utilization and reducing cost, a practical and economical lithium-extracting technological method has been found, which is fit for industrial production.

本文以青海某盐湖晶间卤水(Mg/Li=60~70)为研究对象,从资源的综合利用、降低提锂成本等角度出发,提出了一条技术可行、经济合理、适合工业化生产的提锂工艺路线。

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。

Another isotope, lithium-6, is overabundant: there may be as much as 1000 times too much of it.

而另一种锂,即同位素锂-6却是过于丰富:它的含量可能是过多的1000倍。

The spectroscopically free anion and contact ion pairs are found in PC, EC, DMF, BL, DMSO and acetone solvents, and dimer of contact ion pairs in other solvents.

同时,本文还利用特征谱带的相对强度研究了锂离子在PC-DEC、PC-DMF、EC-DMC、DMSO-AN、DMSO-AN、DMF-THF等二元混合溶剂中的优先溶剂化,锂离子一般被DMF、DMSO分子优先溶剂化。

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推荐网络例句

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。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。