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At the same time, we should also be soberly aware that China's social security system has many drawbacks and shortcomings.

同时，我们也应清醒地看到我国社会保障制度存在许多的弊端与不足。

Soft contact lens-based ophthalmic drug delivery systems can improve the bioavailability and eliminate the drawbacks.

采用角膜接触镜缓释的眼用药物制剂可克服这些缺点，因而受到研究人员的重视。

In this review, the research progress in polymeric hydrogels based on poly-HEMA, organic silicane, molecularly imprinted polymer and ion ligand-containing polymer for sustained ophthalmic drug release and soft contact lens is reviewed, and their advantages/drawbacks are critically analyzed.

综述了基于角膜接触镜、适于缓释眼用药物的poly-HEMA水凝胶、硅氧烷水凝胶、分子印迹聚合物水凝胶以及含离子配体水凝胶的研究进展，并展望了适于角膜接触镜缓释的眼用制剂的水凝胶材料的发展前景。

In practice, however, there are drawbacks,no matter how sound the advice seems in theory.

无论如何，在实践中是有着障碍的，不管在理论上有着多健全的意见。

It started when a need aroused in my organization for some project where we wanted to get the settings and status of a printer directly from the printer, without the use of the Windows Spooler as it has many drawbacks.

它开始时，我的一些项目组织需要引起我们希望从打印机的设置和打印机状态的情况下直接在Windows后台打印程序使用，因为它有许多弊端。

The used chaotic neural networks has many merits, such as transient chaos and stable convergence etc., and it can effectively overcome the drawbacks of easily getting stuck in local minim in conventional Hopfield neural networks.

所提出的方法具有许多优良特性，即暂态混沌特性和平稳收敛特性，能有效地避免传统 Hopfield神经网络极易陷入局部极值的缺陷。

Real options theory, which combines corporate finance, investment decisions and management science, deeply applys mathematical tools, such as stochastic calculus, optimal stopping times, martingale, stochastic differential equations, game theory, etc. Real options analysis overcomes the drawbacks of traditional methods, and provides a new method of investment decisions, financing policies and risk management for the corporate.

实物期权方法深入应用随机分析、最优停时、鞅、随机微分方程、博弈论等数学工具，并与金融学、投资决策和公司管理等学科相互结合，克服了传统方法的局限，为企业提供了一套投资财务战略管理和风险管理的新方法。

The semantic definition of lexical categories in traditional grammar and distribution analysis in structural linguistics both have obvious drawbacks.

传统语法的语义观和结构主义语言学中的分布分析在界定词类范畴时都存在明显缺陷。

Combining with the evolution of congestion control mechanisms, the existed technologies for congestion avoidance and recovery in IP networks are reviewed. The unsolved problems and hot spots in subdiscipline, such as TCP flow control, end to end flow control and enhanced mechanism in intermediate nodes, are summarized, and the advantages and disadvantages of all kinds of schemes for active queue management are emphatically analyzed. Also the paper presents and discusses the drawbacks of heuristic designin...

以拥塞控制机制演化的历史为线索，回顾了IP网络中已有的拥塞控制技术；总结了TCP流量控制、端到端流量控制和中间节点增强机制等各研究子方向中需要解决的问题；重点分析了主动队列管理这一热点领域中已有策略和算法的优缺点，并在此基础上，归纳和阐述了大多数算法所采用的启发式设计加仿真试验验证的模式存在的不足；提出了应用控制理论中的分析和设计方法研究网络拥塞控制的思路，并给出几个有意义的研究方向

In this part, author analysis the substantiality and procedures drawbacks on the base of summarizing the active rule of administrative adjudication system of our country, then put forward the basic principle of reconstruction and the respect of institution design.

本章在总结我国现有行政裁决规则的基础上，从实体与程序两个方面分析了现行行政裁决制度的弊端，在此基础上提出我国行政裁决制度重构的基本原则与制度设计的着眼点。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。