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From April 2000 to June 2002, 512 cases of laparoscopical urologic operation have been performed through transperitoneal and retroperitoneal or extraperitoneal approach: 41 cases of nephrectomy, 36 cases of radical nephrectomy, 10 cases of nephroureterectomy with cystoscopic en bloc excision of the distal ureter and bladder cuff, 3 cases of partial nephrectomy, 78 cases of partial adrenalectomy or resection of adenomas, 71 cases of total adrenalectomy, 17 cases of ureterolithotomy, 122 cases of decortication of renal cyst, 1 case of Anderson-Hynes dismembered pyeloplasty, 7 cases of renal pedical lymphatics disconnection, 2 cases of relative living donor nephrectomy.

本课题通过对223例肾疾病、149例肾上腺疾病、17例输尿管结石病人进行腹腔镜及后腹腔镜手术，其中肾囊肿去顶术140例、单纯肾切除术41例、根治性肾切除术36例、肾输尿管全切及输尿管口膀胱袖套状切除术10例、后腹腔镜肾部分切除术3例、Anderson-Hynes肾盂成形术1例、肾蒂淋巴管离断术7例、腹腔镜和后腹腔镜活体亲属供肾切取术各1例、肾上腺部分或单纯肿瘤切除术78例、肾上腺全部切除术71例、输尿管切开取石术17例。记录手术时间、手术中失血量、肠道功能恢复时间及并发症，将结果与传统开放手术和国外学者的腹腔镜手术结果进行比较，对数据进行统计分析。

A middle-level told 9 cities group our newspaper on March 24, last year second half of the year, net of a small bay in a river of a small bay in a river has suspended operation, all personnel already demobilize, partial billabong arrives 9 cities group, partial personnel left his post.

九城集团一位中层3月24日告诉本报，去年下半年，沱沱网就已经停止运营了，所有的人员都已遣散，部分分流到九城集团，部分人员离职了。

First of all, it is proved that if one partial derivation is continuous,the other partial derivation exists,the binary function is differentiable.

首先证明了当二元函数的一个偏导数存在，另一个偏导数连续时，函数可微。

Then, conversion formulae are given to acquire values of physical parameter partial differential from calculating parameter partial differential.

实例表明，所给出的插值算法及推导的转换公式是正确、可用的。

At the same time, the practical implementation of evolutionary algorithm is given in order that evolutionary algorithm is introduced into vector quantizer. In the fourth section the asymptotic theory of vector quantization is studied. Then the partial distortion theorem that when codebook size is large enough, each region of the partition makes an equal contribution to the distortion for an optimal quantizer, which is the key part of vector quantizer is obtained. Finally, the competitive learning algorithm based on the partial distortion theorem is proposed, which introduces the subdistortion of each region into the distortion measure to assure that the subdistortion of each region approximately equals to each other.

第四章详细研究矢量量化的渐近理论，然后得出了矢量量化器设计的核心部分——部分失真定理，当码本尺寸足够大且输出矢量的渐近概率密度与输入矢量的概率密度的幂成比例时，最优量化器划分的各个区域对该量化器的平均误差产生相同的影响，最后提出基于部分失真定理的竞争学习算法，它通过在误差测度中，引入与各区域相关的子误差以保证各区域的子误差近似相等，该算法实现较为简单，在一定程度上确保全局最优。

China utterly refuses to yield that kind of autonomy to Hong Kong; indeed it is prepared to intervene egregiously in Hong Kong's affairs through its support for the candidates it favours in Hong Kong's "partial" elections and through its "interpretations" of the Basic Law to make sure those elections remain partial.

中国完全否定了做出这种让步的可能；事实上，他准备通过支持香港"部分"选举中自己中意的候选人来过度干涉香港事务，通过对基本法的"解释"来确保选举是部分的。

It is established that one close channel will be thought in the partial wave cross sections of elastic collision and rotational excitation. Five close channels must be considered in the partial wave cross sections of vibrational and rotational excitation at least.

结果表明：在研究氦氢碰撞体系的弹性碰撞、纯转动激发时，可以只考虑1个闭通道的影响，但在研究振转激发分波截面时，至少要考虑5个闭通道，才能得到比较准确的计算结果。

Finally, for ensuring performance of insurance and endowment insurance, this paper compares partial accumulation with pay-as-you-go and funds system, constructs an actuarial model of partial accumulation system, discusses actuarial estimate of shout costs and debts, long costs and debts about endowment insurance, then this paper further considers how to preserve and increase pension funds value and put forwards investment strategies based on the portfolio insurance technique to insure the performance for the going endowment policy.

最后，为保证保险和养老保险的发展绩效，比较了目前实行的部分积累的养老保险制度同现收现付、基金制对经济的影响，构建了部分积累的养老保险制度下的精算模型，讨论了养老保险短期与长期的成本与债务的精算估计，在此基础上进一步思考了现行养老保险制度绩效的保证——积累形成的养老保险基金实现保值增值的问题，提出了运用组合保险技术的投资策略。

The partial oxidation of ethane to ethene and hydrocarbon oxygenates is one of the most difficult processes in partial oxidation of alkanes.

乙烷选择氧化制乙烯或烃类氧化物是烷烃选择氧化研究的热点之一，也是难点之一。

Based on the fundamental theory of impulsive differential systems, employing Green formula, Gauss divergence theorem, Jensen inequality and Gronwall-Bellman inequality with impulse, we discuss the oscillation of impulsive partial differential systems by adopting reduction to absurdity and the stability in via of comparison theorem, respectively. Especially, we take an in-depth study on the oscillation of neutral impulsive parabolic systems and the stability of a class of nonlinear impulsive partial differential equations and obtain some useful conclusions.

本学位论文以脉冲微分系统基本理论为基础，利用反证法的分析方法和比较定理，结合Green公式、Gauss散度定理、Jensen不等式、含脉冲的Gronwall-Bellman不等式以及相关数学工具研究了脉冲偏微分系统的振动理论和稳定性理论，特别对中立型脉冲时滞抛物系统的振动性和一类非线性脉冲偏微分系统的稳定性作了较为深入的研究，给出了一些有用的结论。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。