查询词典 Dec.

In order to improve the cycle performance of lithium-ion rechargeable battery, a little of anisole was added in the electrolyte system of EC／DEC���1.0 mol*L－1 LiClO4, with improved graphite and Li as electrode materials.

为了改善锂离子蓄电池的循环性能，在EC／DEC／1.0 mol／L LiClO4电解液体系中加入微量添加剂苯甲醚。

But the concentration of Li2CO3 remains nearly consistent and a new component, CH3OLi, is found in SEI. It can be concluded from these results that anisole reacts with the reduction product of EC and DEC, RCO3Li, in the first process of Li＋ intercalating into the carbon electrode. The obtained CH3OLi is helpful in building up a more effective and stable SEI of the carbon electrode, reducing the cointercalation of solvent molecular. All these contribute to the improvement of the cycle performance of lithium-ion battery.

根据以上分析结果，提出了苯甲醚对锂离子电池循环性能的影响机理：在Li＋嵌入石墨电极的初次过程中，苯甲醚和EC、DEC的还原分解产物RCO3Li发生基团交换反应，生成CH3OLi，该产物能有效提高石墨电极表面SEI的稳定性，减少锂离子嵌入石墨过程中引起的溶剂分子共嵌入，从而改善电池的循环性能。

Dec 16, 2007 - Is that the Communist Party wants you to believe?

Dec 16， 2007 -全面内战的爆发是哪年哪月的事情？

Countries struggling to slow increase in child hunger - Dec 10, 2008

在一年中最冷的季节，阿富汗遭受食品短缺危机- Dec 13， 2008

Dec 4, 2007 - i love this song...who sing oso best..

Dec 7， 2007 -嘿嘿，这首歌我比他唱得更好

Mothers-to-be face death in Zimbabwe - Dec 4, 2008

津巴布韦瘫痪的供水和卫生系统造成五百多人死于霍乱- Dec 13， 2008

The first recognisable e-mail marketing message was sent on 3 May, 1978 to 400 people on behalf of DEC - a now-defunct computer-maker.

第一封被承认的电子邮件商业信息是在1978年5月3日，是代表DEC --一个现在已经不存在的电脑制造商发给400人的信息。

Dec 23, 2008 - You are welcome. This is where we can all enjoy the same stage play.

Dec 23， 2008 -我的叔叔们是邓丽君和李逸的迷，小时候听到这歌剧笑到滚地。

The programmer can change the notational base to octal or hexadecimal or back to decimal (the representation of floating-point values is unaffected) by using the manipulators hex, oct, and dec

通过使用操纵符 hex、 oct 和 dec，程序员可以将表示进制改为八进制、十六进制或恢复十进制

The most popular lines were the DEC PDP-11 models and the DEC VAX, both of which are available in various models today.

最流行的系列是DEC公司的PDP-11 机和DEC VAX机二者在今天的各种机型中仍然有效。

Graf, without question, is the greatest women's player in history.

格拉芙，现在，毫无疑问是女子网坛历史上最伟大的选手。

If not, you will have to look around at all your important data.

如果没有，您将需要检查所有的重要数据。