四元

Bis(1,2,3,4-tetrahydroisoquinoline-2-ylmethyl) HBr salt (K2) guest has been synthesized from 1,2,3,4- tetrahydroisoquinoline and ethylenedibromide. The self-assembly interaction models of cucurbit[8]uril (Q[8]) with this synthetic guest have been investigated by using 1H NMR technique, single crystal X-ray diffraction determination and theoretic calculation method.

以用1，2，3，4-四氢喹啉和二溴乙烷合成的二(2-亚甲基-1，2，3，4-四氢异喹啉)的溴化氢酸盐为客体，八元瓜环为主体，利用1H NMR技术，单晶X射线衍射方法以及理论计算等方法，考察了两者的自组装模式。

According to the existence results of general equilibrium problems and vector equilibrium problems have been studied more and more. Inspired and motivated by these research results, this paper is devoted to study systematically a class of equilibrium problems, which is unify and extension of a large number of known equilibrium problems and variational inequalities problems. The research is carried on from three aspects.Firstly, in finitely continuous topological spaces, we introduce four new types of the system of generalized vector quasi-equilibrium problems, and we derive some existence results of a solution for the system of generalized vector quasi-equilibrium problems via the maximal element theorems in product finitely continuous topological spaces.Secondly, in complete metric spaces, we provide the Ekeland variational principle to equilibrium problems with set-valued maps. And via the Ekeland variational principle, existence results for vector equilibrium problem with set-valued maps and the system of vector equilibrium problem with set-valued maps.

针对一般的均衡问题和向量均衡问题解的存在性，已有许多研究成果，受这些成果的启发，本文主要从理论上较为系统地研究了一类均衡问题，它统一和推广了许多已有的均衡问题和变分不等式问题，研究分有三个方面；首先，在有限连续拓扑空间中，我们提出了四类广义向量拟均衡系，并借助于有限连续拓扑空间中的极大元定理讨论了这四类均衡系问题的解的存在性问题，然后，在完备度量空间中，我们给出了关于集值均衡问题的Ekeland变分原理，并利用Ekeland变分原理分别讨论了集值向量均衡问题和集值向量均衡系问题的解的存在性。

In 1999-2000, education will continue to be the single biggest item of recurrent expenditure.

在一九九九至二零零零年度，教育将继续是最大的经常开支项目，总额会增加至四百四十亿元。

In real estate sales, real estate contract in 2003 the registration area number, size and the amount of 38,880, respectively, 4.48 million square meters and 137 billion respectively over the previous year increased by 25.6%, 16.24% and 16.73%.

在房地产销售，房地产合同，在2003年注册区数量，规模和数额的38880 ，分别四百四十八点〇万平方米和137亿元，比前一年增加了25.6 ％， 16.24 ％和16.73 ％。

The first three quarters of this year, Qingdao Lot 3 general residential average price of 4439 yuan per square meter in the same period last year rose 42.7 percent, Qingdao has become the largest regional price increase.

前三季度，今年青岛市地段3个一般住宅的平均价格四四三九元在每平方米，比去年同期增长百分之42.7 ，青岛已成为国内最大的区域价格上涨。

To meet the market demand for high-quality, ranks among the world's first cases of the field of printing, the company has introduced the world's most advanced CTP platesetter, Heidelberg UV five-color offset press, Heidelberg two-color, four-color, six-color, seven-color complete sets of equipment, such as offset printing press; automatic tipping machine die-cutting, Folder Gluer, UV coating machine, folding machine, binding machine equipment, such as India, the annual production capacity to more than 400 million yuan.

为满足市场高品质需求，跻身世界印刷领域先进行例，公司先后引进了目前世界最先进的 CTP 直接制版机、海德堡五色 UV 胶印机、海德堡双色、四色、六色、七色胶印机等成套设备；全自动模切烫金机、糊盒机、 UV 上光机、折页机、装订机等印后设备，年生产能力可逾四亿元人民币。

For the revolutional shell of central stage, the terms of Fourier series can be decoupled into four subgroups.

对于采用回转壳环元的芯级而言，取四分之一结构归结为将所有富里叶分量分成互不耦合的四组分别求解。

The tetrazine high-nitrogen energetic materials are new kinds of ones researched and reported widely at home and abroad in recent years.

四嗪环是一种含氮质量分数达68.3%的六元氮杂环含能基团，是设计高能钝感含能材料中非常有效的结构单元；四嗪类高氮含能材料也是近年来国内外研究和报道较多的一种新型含能材料，部分具有生成焓高、热稳定性好和感度较低等特点。

The tetrazine high-nitrogen energetic material s are new kinds of ones researched and reported widely at home and abroad in recent years.

四嗪环是一种含氮质量分数达68.3%的六元氮杂环含能基团，是设计高能钝感含能材料中非常有效的结构单元；四嗪类高氮含能材料也是近年来国内外研究和报道较多的一种新型含能材料，部分具有生成焓高、热稳定性好和感度较低等特点。

Tetrazine ring is an energetic nitrogen hexa-heterocyclic group with nitrogen mass fraction of 68.3%,so it is a very effective structure unit in the design of high energetic,insensitive materials.The tetrazine high-nitrogen energetic materials are new kinds of ones researched and reported widely at home and abroad in recent years.

四嗪环是一种含氮质量分数达68.3%的六元氮杂环含能基团，是设计高能钝感含能材料中非常有效的结构单元；四嗪类高氮含能材料也是近年来国内外研究和报道较多的一种新型含能材料，部分具有生成焓高、热稳定性好和感度较低等特点。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。