成功地

The logarithm difference values of partition coefficients of the compounds in butyl ether/water and in cyclohexane/water system were used for the measurement of the Lewis acidity, while the logarithm difference values of partition coefficients in trichloromethane/water and in tetrachloromethane/water system were used for the measurement of the Lewis basicity, and they were used successfully to differentiate the relative strength of Lewis acidity and basicity for 59 benzene and its derivates.

以化合物在正丁醚/水和环己烷/水溶剂体系中分配系数的对数差作为酸性指数，以其在氯仿/水和四氯化碳/水溶剂体系分配系数的对数差作为碱性指数，提出了一种新的度量有机物Lewis酸碱性的方法，按此方法成功地区分了59种苯系物Lewis酸碱性的相对强弱；并成功地将上述酸碱性指数引入定量结构—性质/活性相关研究之中，探讨了苯系物的正辛醇/水分配系数、水溶解度和土壤有机碳吸附系数等常见理化性质与其Lewis酸碱性间的相关性并建立了相应的定量模型，发现它们之间存在良好的相关性。

In order to obtain versatile ulitity of host molecules, three new chiral calix [4] crown ethers containing aza, thio atoms bearing two chiral sites provided by -cysteine ester were synthesized by the condensation of calix [4] arene diacid dichloride with oligoethylene glycol bridged bis-amino acid methyl ester. All new compounds were characterized by NMR, MS and elemental analysis.

以-半胱氨酸为手性源，利用多甘醇二氯醚在碱性条件下对半胱氨酸巯基进行烷基化反应，成功地合成了多甘醇醚链桥联的半胱氨酸衍生物，醚化反应后，在高度稀释条件下与对叔丁基杯[4]芳烃二乙酰氯进行双功能基缩合反应成功地合成了新型的手性杯[4]含氮、硫杂冠醚，并利用〓H NMR、MS等谱图手段对其结构进行了表征。

Due to the complexity of the cell jitter, the NonSynchronous Tining Recovery methods are currently not mature With the emphasis being given to the Class A CBR traffic, this paper analyzes the performance of the queueing delay and cell jitter at the source node and intermediate nodes, and discusses the Source Timing Recovery at the destination node in ATM networks Firstly, this paper presents a description of the cell jitter of CBR traffic, and gives the definitions of two kinds of cell jitter regarding the Source Timing Recovery for CBR traffic Then, by using exact mathematical models and analysis methods, this paper analyzes the impact of the factors, such as the capacity of the queueing buffer, the randomness, the deterministic nature and the correlation in cell arrivals of the background traffic sources, on the queueing delay and cell jitter performance of the CBR traffic through Statistical Multiplexitng To obtain an insight into the power spectral distribution and look for better schemes for the depression and filtering of the cell jitter, within the analyses we succeed deriving the power spectrum of the cell jitter for CBR traffic Hence, not only the power spectral distribution of the cell jitter can in the frequency domain be qualitatively understood, but also can the rms (root-meansquare) value of the cell jitter be quantitatively obtained so as to more accurately measure the amplitude of the jitter In the end-to-end performance analysis of the queueing delay and cell jitter, we propose a kind of quasi-periodic cell stream model to characterize the jittered CBR traffic, and present an initial queueing analysis of the CBR traffic following such a model at a generic intermediate node Additionally, we briefly discuss the buildout/playout and Source Timing Recovery functions of the destination node Finally, regarding the Source Timing Recovery of CBR traffic, this paper systematically discusses several important principles of the cell jitter filtering and depression reported in the literature, introduces several implementation schemes of the Source Timing Recovery e.

由于信元抖动的复杂性，非同步定时恢复方法目前还很不成熟。本文针对A类CBR业务流在ATM网络源节点和中间节点的排队时延和信元抖动性能，以及在目的节点的源定时恢复问题作了较为全面的研究。首先，文中描述了CBR业务流的信元抖动，并具体地给出了两种与CBR业务源定时恢复有关的信元抖动的定义。然后，采用了精确的数学模型和分析方法，有针对性地分析了业务背景中信元到达的纯随机性、确定性和相关性以及排队缓存器容量等因素对CBR业务流经过统计复用后的排队时延和信元抖动性能的影响。为了了解信元抖动的功率频谱分布和寻求更好的抑制和滤除抖动的方法，在性能分析中，我们成功地完成了CBR业务流信元抖动的功率谱分析，使得不但可以从频域定性地认识信元抖动的能量分布特性，而且还可以定量地求出信元抖动的均方根值(rms：root-mean-square)，以更为准确地衡量抖动的大小。在CBR业务流的多节点端-端排队时延和信元抖动性能分析中，我们提出了一种准周期性(quasi-periodic)信元流模型来描述感染了信元抖动的CBR业务流，并基于这一模型进行了CBR业务流中间节点的初步排队分析。

The ways of implication have been separated into politeness,ellipsis,and humor according to the potential criteria in communication principles executed by the mechanism of discourse implication which exists in the process of intercommunicating,so,all the three elements of language——-pronunciation, vocabulary,and syntax take part in the process,and the mechanism of discourse implication need to be provided with some definite necessary conditions.

一、话语暗示的类型会话是由一个以上的人参加的交替说话的言语交际活动。话语交际的目的是为了说话人成功地传达信息，听话人成功地理解接受说话人所传达的信息，并能够做出相应的反应。所以

Benninger has successfully been using a ratio drive in mercerizing machines for processing knitted fabrics since 1977. This technique was first realised for woven fabrics on the BEN -DIMENSA in 1987. Since then there are more than 150 successfully operating installations.

贝宁格自1977年成功地将速比控制原理应用于针织物丝光机上，并于1987年将此技术第一次实现于机织物丝光机，自此已有150多台这样的丝光机成功地投入实际生产。

In 1922, State Farm was formed by George Mecherle, a farmer from Merna, Illinois, who aimed to take advantage of the pricing umbrella maintained by the high-cost giants of the industry. State Farm employed a "captive" agency force, a system keeping its acquisition costs lower than those incurred by the bureau insurers (whose "independent" agents successfully played off one company against another). With its low-cost structure, State Farm eventually captured about 25% of the personal lines business, far outdistancing its once-mighty competitors. Allstate, formed in 1931, put a similar distribution system into place and soon became the runner-up in personal lines to State Farm.

1922年州农保险由伊利诺州 Merna 的农夫 George Mecherle 所创立，年州农保险由伊利诺州所创立，目标锁定在打破业界掮客所树立的高价保护伞，州农雇用专属仲介人员，标锁定在打破业界掮客所树立的高价保护伞，州农雇用专属仲介人员，这套系统让州农取得保单的成本远低于一般保险同业，套系统让州农取得保单的成本远低于一般保险同业，其独立业务代表接二连三成功地搞倒其它业者，拜其低成本结构所赐，州农最终拮取连三成功地搞倒其它业者，拜其低成本结构所赐，州农最终拮取25%的个的个人业务大饼，含车险及住宅险在内，远远超越昔日强大的竞争对手，人业务大饼，含车险及住宅险在内，远远超越昔日强大的竞争对手，而创立于1931年的 Allstate 也仿效设立类似的行销通路，并一举跃居第二，立于年的也仿效设立类似的行销通路，并一举跃居第二，仅次于州农，资本主义再度发挥神奇的效用，仅次于州农，资本主义再度发挥神奇的效用，而这种低成本的营运确已势不可挡。

Second, the genes coding for TPI and ALD were constructed in tandem to form two cistron by altering the base composition and the length of intercistronic region and cloned into 〓 expression system, an active, high-level co-expression was completed successfully.

采用〓启动子成功地获得了TPI—ALD-FBPase三基因活性共表达，构建了三基因共表达的大肠杆菌-蓝藻穿梭表达质粒，并在大肠杆菌中成功地进行了活性表达。

In the past century, the staff of the department has advocated the spirit of "Ethical, devoted, always improving and striving for excellence", continued creating and improving their medical technology. The department has diagnosed, treated, and rescued many critical and difficult cases, hard-treat cases and rare cases, such as the first case of kidney transplantation, the first case of amputation and the first case of dieresis operation for conjoined twins at the head in China. These achievements filled in the blanks of our country's medical field.

一百多年来，中山一院外科医护人员发扬着&精医尚德、求是进取&的风尚，不断开拓创新，提高医疗技术水平，成功地诊断、治疗和抢救了无数危重、疑难和罕见病人，如：国内首例肾移植手术、首例断趾再植的成功开展；全国首例连头婴分离手术的成功施行等等，这些令人瞩目的辉煌成就，为我国医疗界填补了许多空白。

Many claimed it could not be done, despite the examples of Korea, which managed the trick in the 15th century, and Vietnam which, like China, has a tonal language with many homonyms but switched successfully to an alphabetic system.

尽管有朝鲜和越南的先例，许多人还是要求不要改。前者在15世纪成功地应用了这种方法；后者的语言中尽管有许多同音字，也成功地转换成拼音文字。

Many claimed it could not be done, despite the examples of Korea, which managed the trick in the 15th century, and Vietnam which, like China, has a tonal language with many homonyms but switched successfully to an alphabetic system.

尽管有朝鲜和越南的先例，许多人还是要求不要改。前者在15世纪成功地应用了这种方法；后者尽管是音调语言，并且有许多同音字，也成功地转换成拼音文字。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。