特别重要

Ultrasound drug delivery could be particularly attractive for gene therapy, which has successfully used viruses to insert genetic material into cells - but with side effects.

超声波药物传递对目前特别引人关注的基因疗法尤其具有重要意义。当然，这种技术也同样能够用于更精确地定向传递化疗药物。

Actuarial science applies mathematical methods in insurance and is a science between applied mathematics and insurance. Bonus-malus system of automobile insurance is an important topic in actuarial science. Markov chain, Bayes theory, the theory of delay differential equation and dynamic programming are used to study BMS, especially optimal BMS, of automobile third-party liability insurance in this dissertation, which is organized as follows:First, we study the properties of Chinese present BMS.

精算学是将数学方法应用于金融保险所形成的一套理论体系，是应用数学研究领域和金融保险研究领域这两者之间的一个边缘学科，汽车保险奖惩系统是现代精算学中的一个重要研究课题，本文主要用马尔可夫链、贝叶斯理论、时滞微分方程理论与动态规划等研究汽车第三者责任保险奖惩系统，特别是最优奖惩系统。

Freezing soil is a natural phenomina in cold and mountain areas, which has great impact on the regional climate, water cycle, and water balance. The land surface process in the condition of soil freezing and thawing is one of the most important process in the area. This paper firstly reviews the present study on land surface process in the condition of soil freezing and thawing, especially the development after the the hydrological land surface model introduced into the study of General Circulation Model, then introduces the undergoing international research project, such as Project for Intercomparison of Land-surface Parameterization Schemes and Cold Land Process Field Experiment by NASA, and finally analyses and puts forward the future research field and topics.

冻土是全球中高纬地区和高山地带普遍存在的自然现象，它对全球以及区域性气候、水循环、水平衡等都有着巨大的影响，土壤冻融条件下的陆面过程正是这种影响的重要环节，介绍了土壤冻融条件下陆面过程的研究现状，特别是在大气环流模型中引入水文陆面模型以来陆面过程研究的迅猛发展，对现在国际上正在进行的考虑冻土的陆面过程研究项目，如陆面过程参数化比较计划的第二阶段第五期PILPS (2E)以及美国NASA的寒区陆面过程实地试验计划也进行了介绍，并在此基础上对土壤冻融条件下陆面过程的发展趋势进行了分析。

In June 20 this year, Chinese President Hu Jintao delivered an important speech on how Chinese media further play the leading role of spreading information and guiding public opinions. He even interestedly made direct exchanges with netizens through the website www. people. com.cn, which has shown the great concern from state leaders of China with media, especially the new media like the Internet.

今年6月 20日，胡锦涛总书记在人民日报社考察工作时，对《人民日报》和中国媒体如何进一步发挥信息传播与舆论引领作用发表了重要讲话，特别是胡锦涛总书记在人民网兴致勃勃与网民直接交流的情景，让全世界都看到了中国国家领导人对媒体、尤其是对互联网等新媒体的高度重视。

The main innovative points of this paper are given as follows:(1)The precise material parameters play an important role to an effective simulation. An identification scheme to couple the finite element method and IP -μGA(a modified micro genetic algorithm with the strategy of Intergeneration Projection)is developed and programmed.

计算机仿真技术在汽车设计制造中得到了越来越广泛的应用，特别是在汽车碰撞安全性设计中，仿真技术为缩短开发周期、降低成本起着很重要的作用。

The results show that, foamed acid possesses some characters such as low density, flowback easily, water plugging, selectively blocking up, corrosion control, reaction control, esc. Then foamed acid was especially fit for gas wells, reacidizing wells, wells of prominent interlamination antinomy between layers, wells containing water and oil in a same layer, esc.

研究结果表明，泡沫酸具有密度低、易返排、堵水不堵油、堵大不堵小、缓蚀、缓速等重要性质，特别适用于气井、重复酸化的老井、层间渗透率差异井、油水混层井等的酸化施工作业。

In addition, steam piping and steam transmission equipment used to steam temperature warming in the process from the initial cryogenic condensation water to rapidly discharge equipment in a short period of time to achieve normal operation, it is important to increase productivity, particularly intermittent production occasions, as a shortened pre - thermal time, it shortened the period of time, the increase in the number of treatment and eventually increase production.

此外，在蒸汽输送管路和蒸汽使用设备升温达到蒸汽温度的过程中，所产生的初期低温凝结水也要迅速排出，使设备在短时间内实现正常运转，这是提高生产效率的重要条件，特别是间歇生产的场合，由于缩短了预热时间，也就缩短了每次的作业时间，由于增加了处理次数，最终可增加产量。

In addition, transmission lines and steam in the steam using equipment to steam temperature heating process, the condensate produced by the initial low temperature and quickly discharged to the normal operation of equipment in the short period of time, this is an important condition for improving production efficiency, in particular, intermittent FORGED STEEL VALVES production of the occasion, because shortened warm-up time, thus shortening the time each operation, the addition of the processing times, ultimately, increased productivity.

此外，在蒸汽输送管路和蒸汽使用设备升温达到蒸汽温度的过程中，所产生的初期低温凝结水也要迅速排出，使设备在短时间内实现正常运转，这是提高生产效率的重要条件，特别是间歇生产的场合，由于缩短了预热时间，也就缩短了每次的作业时间，由于增加了处理次数，最终可增加产量。

It is well known that the intermolecular interactions play an important role in chemistry, physics, and in particular in the biodisciplines.

众所周知，分子间的相互作用在化学，物理和特别是在生物方面起着非常重要的作用。

But most of all, I'm very very intrigue d by what they're doing with UNICEF.

但最重要的是，我对他们为联合国基金会所做的一切特别感兴趣。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷