查询词典 lithium

Lithium-ion battery is a new type of secondary batteries developed during 1990's.

锂离子电池是20世纪90年代发展起来的新型二次电池。

At 95% confidence level the relative expanded uncertainty of the present method for determination of lithium isotopic abundance ratio is estimated to be 0.26%.

结果显示，在95%的置信水平下，应用这种方法测定锂样品同位素丰度比值，其相对扩展不确定度为0.26%。

Lenovo E255 Zhaoyang the basic hardware configuration: Intel Centrino mobile technology, Pentium-M-1.4G processor, Intel 855GM chipset, 855GM chipset, 256M RAM, 30G hard disk, 14.1-inch liquid crystal display, Intel 855GM graphics accelerator card dynamic allocation of memory, DVD drive, 4 USB 2.0 interface, an IEEE1394 FireWire interface, built-in wireless LAN card; adaptive 10/100 megabit network card, and other interface ports full weight 2.5KG, intelligent and efficient lithium ion battery (official battery life 3 hours).

再就是贵点的：联想昭阳E255的基本硬件配置为：英特尔迅驰移动计算技术的Pentium-M-1.4G处理器， Intel 855GM芯片组、855GM芯片组、256M内存、30G硬盘、14.1英寸液晶显示屏、Intel 855GM图形加速卡动态分配显存、DVD光驱、4个USB 2.0接口、一个IEEE1394火线接口、内置无线局域网卡；10/100兆自适应网卡、其他端口接口齐全、重量2.5KG 、高效智能锂离子电池（官方公布电池使用时间3小时）。

Nucleophilic opening of the terminalepoxide 57 by a lithium acetylide from 27 in the presence of BF3·EtO furnishedcompound 58, which had the skeleton of target molecule, subsequent conversionsinvolved the introduction of γlactone gave Annonacin.

然后以三氟化硼参与的炔负离子开环氧反应建立分子骨架，得到化合物58。随后经氢化，引入α，β不饱和丁内酯环、去保护等几步反应，就得到Annonacin。

We have used GC to follow up the formation of epoxy acid and established the acidify condition; we have done series of parallel experiments to better the pivotal condensation reaction between acid and amine; In the cyclization step, we use cheap and available reagent-Lithium amide , rather than expensive LiHMDS, to proceed the reaction; and at last, we introduced green reagent-ozone to clear the phenyl group of nitrogen to avoid using heavy metal reagent-CAN. The total yield for this method is 29.8%.

通过GC监测，确定环氧酸的最佳酸化条件；对关键的酸和胺的缩合步骤，平行试验了多种条件；在环合一步，用价廉易得的氨基锂及催化量的HMDS代替昂贵的LiHMDS进行反应；氮上苯基的脱除采用臭氧，避免了重金属试剂-硝酸铈铵的使用，总收率为29.8％。

Finally, the volume holographic data storage characteristics of a lithium niobate crystal are investigated. The photovoltaic effect of the lithium niobate crystal is analyzed, and a system of storage capacity of 10.5Gbits/cm〓 and 1000 holograms stored for correlation recognition is realized.

最后，理论分析和实验验证了晶体材料光伏效应对大容量全息存储的影响和抑制方法，并在小型化体全息存储与相关识别系统中实现了10.5Gbits/cm〓存储容量和1000幅库图像的相关识别。

This invention discloses one lithium ion battery anode materials, which is made by following steps: a, mixing lithium salt, microcosmic salt and ferrous oxalate for grinding with mole proportion as one to one to one; after drying under nitrogen gas protection in 300-400DEG C for heating for five to eight hours; b, adding addictive agent into the mixture with weight proportion as3-10:1; c, bursting the mixture gas under inertia gas protection under temperature of 500-800DEG C for 10 to 24 hours; d, adding the product into crucible with active carbon 10 to 40 g and adjusting the microwave frequency into 140 to 700 W with control time as 1 to 14 minutes.

本发明公开了一种锂离子电池正极材料，由70-90wt％的LiFePO 4 和10-30wt％的碳组成，按照以下步骤制备：(1)将锂盐、磷盐和草酸亚铁混合球磨，所述锂、铁和磷元素的摩尔比为1∶1∶1，干燥后在氮气保护下300～400℃预热5～8小时；(2)在上述的混合物中加入添加剂，所述混合物与添加剂的重量比为3～10∶1；(3)将步骤(2)得到的混合物在惰性气体保护下，进行焙烧，焙烧温度为500～800℃，焙烧时间为10～24小时；(4)将焙烧后的产物压片，放入装有活性炭10～40g的坩锅，再将坩锅放入微波炉中，微波功率调至140～700W，控制时间为1～14分钟。

When R approaches to infinity, the total energy of nine lithium atoms has the value of -66.852240 a.u., so the binding energy of Li9 with respect to nine lithium atoms is

在R趋于无穷大时这9个锂原子的总能量为-66.852240 a.u。，所以形成Li9的总结合能为

BACKGROUND: Based on documents abroad and home, both alginic acid and carbomer are used to prepare gel matrix of lithium carbonate tablets; furthermore, hydroxypropyl methyl cellulose, a kind of water-soluble skeletal material, can be used as controlled release matrix of lithium carbonate tablets.

摘要背景：目前国内外文献报道的碳酸锂缓释片多采用海藻酸、卡波姆等制备凝胶型骨架片，同样作为水溶性骨架材料的羟丙基甲基纤维素，也可作为碳酸锂的缓释基质。

It took Cockcroft and Walton five years to build a machine that worked. Finally, in April 1932, they had a machine that produced a steady stream of hydrogen nuclei with an energy of about half a million volts. They were carefully measuring the quality of the stream, in no hurry to begin doing nuclear experiments. On the morning of April 13, Rutherford came into their room, saw what they were doing, and lost his temper. He told them to stop wasting their time and do some science. The next day, Cockcroft was occupied with other business. Walton was alone in the laboratory, ready to do the first experiment, using his hydrogen nuclei to bombard a target made of the light metal lithium. The result was spectacular. The lithium nuclei were split in two and fell apart into pairs of helium nuclei.

用了五年时间，考克饶夫和华尔顿建造出了第一台能运行的加速器，最终，在1932年，他们制造出了能够提供稳定氢粒子流的加速器，粒子能量大约为50万伏特，他们并没有急着做核试验，而是精心测量了粒子流的性质，4月13日清晨，卢瑟福来到他们的房间，看到他们还在测量，大发雷霆，告诉他们停止浪费时间，开始科学研究，第二天，考克饶夫就被安排了其他事情，只剩华尔顿一个人在实验室里，准备做第一次实验，用他的氢粒子流轰击用轻质金属锂作的标靶，结果极为壮观，锂原子被分裂成两半形成一对氦原子，氦原子释放出的能量比氢原子注入的多达三十倍！

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。