四元的

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。

While one thick garment is, for most purposes, as good as three thin ones, and cheap clothing can be obtained at prices really to suit customers; while a thick coat can be bought for five dollars, which will last as many years, thick pantaloons for two dollars, cowhide boots for a dollar and a half a pair, a summer hat for a quarter of a dollar, and a winter cap for sixty-two and a half cents, or a better be made at home at a nominal cost, where is he so poor that, clad in such a suit, of his own earning, there will not be found wise men to do him reverence?

一件厚衣服的用处，大体上可跟三件薄的衣服相同，便宜的衣服可以用真正适合顾客财力的价格买到，一件厚厚的上衣五元就可以买到了，它可以穿上好几年，厚厚的长裤两元钱，牛皮靴一元半，夏天的帽子不过一元的四分之一，冬天的帽子六毛两分半，或许还可以花上一笔极少的钱，自己在家里制一顶更好的帽子，那穿上了这样的一套自己辛勤劳动赚来的衣服，哪里还是贫穷，难道会没有聪明人来向他表示敬意吗？

Multiple antenna arrays are often used to overcome the effect of channel fading which is caused by multipath interference. In chapters 4 and 5 ,we derive spatial correlation equations of ULA ,UCA and CRA for two types of angular spread distributions (uniform distribution and truncated Gaussian distribution).We also compare the difference between these antenna arrays by showing the bit error rate simulation results and discuss the relationship between BER and spatial correlation. In a multi-user mobile radio environment , we present simulation results to show that adaptive MBER algorithms have better performance than the traditional MMSE algorithm.

多天线阵列常被用来克服多重路径干扰导致通道衰减的影响，我们对各种天线阵列架构进行比较，在第四、五章中推导出ULA、UCA与CRA个别对两种角度扩散机率密度分布的空间相关性函数，由实际实验模拟的位元错误率图形比较天线阵列间的差异，并讨论位元错误率与空间相关性之关连，在多用户端行动通讯环境下，我们也由模拟验证可适性MBER演算法，会比传统MMSE准则有更好的效果。

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。

Article 42 Where a notarial office or any of its following acts, the judicial administrative department of the people's government of the province, autonomous region, municipality directly under the Central Government, or districted city shall give a warning to the notarial office and shall impose upon it a fine of 20, 000 up to 100, 000 yuan, and may give a punishment of suspending business for rectification for 1 up to 3 months.

第四十二条公证机构及其公证员有下列行为之一的，由省、自治区、直辖市或者设区的市人民政府司法行政部门对公证机构给予警告，并处二万元以上十万元以下罚款，并可以给予一个月以上三个月以下停业整顿的处罚；对公证员给予警告，并处二千元以上一万元以下罚款，并可以给予三个月以上十二个月以下停止执业的处罚；有违法所得的，没收违法所得；情节严重的，由省、自治区、直辖市人民政府司法行政部门吊销公证员执业证书；构成犯罪的，依法追究刑事责任

In accordance with the planning, industrial base covers an area of 6,000 mu, with a total investment 100 billion, by 2010 the region and a variety of manufacturing services sector will reach the total number of enterprises 1000,技工贸收入realize 10 billion yuan by 2015 years following completion of the Pearl River Delta, Yangtze River Delta, Bohai three packets Center Indian domestic fourth seal package industry center, has become the central and western regions of India's largest industrial base package.

按照与规划，产业基地占地6000亩，总投资100亿元，2010年该地区的制造业和服务业品种将达到1000企业总数，技工贸收入实现百亿元，到2015年，长期追踪的珠江三角洲，长江三角洲，环渤海中心完成3包印度国内第四密封包装工业的中心，已成为印度最大的工业基地包的中部和西部地区。

The data of selected structure parameters of (C_5H_5)_3Ln· THF, such as the average distance between the penta carbon ring and the central metal, the distance between the penta carbon center or the coordinated THF and the central metal, showed that their values decreased with the increase of atomic number.

产物(C_5H_5)_3Ln·THF的特征结构参数，如五元碳环的碳原子与中心金属的平均距离，五元碳环质心与中心金属距离，配位的四氢呋喃氧原子与中心金属距离，由于&镧系收缩现象&，随着中心原子序数的增加而减小。

Now we, as the composite optical probe coordinates (2.5 million), the CMM, the second yuan camera projection measuring machine, Chao Shu-optical probe of the professional producers, both in the relevant core technology with independent knowledge of technological property rights , Is especially worth noting that our YXB the probe successfully developed greatly reduced the company's costs, YXB probe has therefore become the world's probe of the industry one of the semi-finals.

如今我们作为光学探针复合式二坐标（2.5次元）、三坐标测量机、二次元摄像投影测量机、光学探针式抄数机的专业生产商，在相关核心技术上都拥有自主知识技术产权，特别值得指出的是我们的YXB测头的研发成功大大降低了公司成本，YXB测头也因此成为世界测头行业的四强之一。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。