在中心

Through the John and June Hechinger Commissioning Fund for New Orchestral Works, the Orchestra has commissioned more than 60 works, including cycles of fanfares and encores, which, taken as a whole, are representative of the diverse influences in American composition today.

此外，美国国家交响乐团还经常出访各国，并为各国首脑演出，因此在国际上享有重要地位。美国国家交响乐团成立于1931年，在历史上它一向致力于提供优秀的音乐演出。1986年，国家交响乐团成为肯尼迪艺术中心的下属单位，肯尼迪艺术中心是整个美国表演艺术的重要单位，自从1971年成立以来每年都推出音乐季演出。

By using the NCEP/NCAR (National Center for Environmental Prediction/National Center for Atmospheric Research) reanalysis of daily with the horizontal resolution of 10°×10°(lat./lon. grid), the representative Pacific area (0°～ 60°N, 160°E～120°W) in northern hemisphere summer is chosen to analyse the 3D wind field, according to which the mean meridional circulation of the lower and middle latitudes, especially the Ferrel cell, is studied and a new concept model of Ferrel cell is carried out. Compared with the classical model, the new one describes more precisely the low and high level winds and has the ability to describe how the westerlies sustain on the real rotating Earth.

本文利用1998～2003年的NCEP/NCAR（National Center for Environmental Prediction/National Center for Atmospheric Research，美国国家环境预报中心/美国国家大气研究中心）再分析资料（10°×10°，经/纬度网格），根据北半球夏季（6～8月）太平洋地区（0°～60°N；160°E～120°W）的三维风场的基本特征，分析了北半球夏季太平洋地区平均经圈环流，特别是Ferrel环流的特征，发现Ferrel环流具有与已往研究不同的性质，并在此基础上提出了Ferrel环流新的概念模型，与过去的经典的环流概念模型相比能较好地描述高低空环流的基本特征，同时在考虑地球自转效应下，能够完满地解释中高纬度西风带的维持。

By using the NCEP/NCAR (National Center for Environmental Prediction/National Center for Atmospheric Research) reanalysis of daily with the horizontal resolution of 1.0°x1.0°(lat./lon. grid), the representative Pacific area (0°~60°N, 160°E~120°W) in northern hemisphere summer (Jun-Jul-Aug) is chosen to analyse the 3-D wind field, according to which the mean meridional circulation of the lower and middle latitudes, especially the Ferrel cell, is studied and a new concept model of Ferrel cell is carried out. Compared with the classical model, the new one describes more precisely the low- and high- level winds and has the ability to describe how the westerlies sustain on the real rotating Earth.

本文利用1998~2003年的NCEP/NCARNational Center for Environmental Prediction/National Center for Atmospheric Research，美国国家环境预报中心／美国国家大气研究中心）再分析资料（1.0°×l.0°，经／纬度网格），根据北半球夏季（6~8月）太平洋地区(0°~60°N； 160°E~120°W的三维风场的基本特征，分析了北半球夏季太平洋地区平均经圈环流，特别是Ferrel环流的特征，发现Ferrel环流具有与已往研究不同的性质，并在此基础上提出了Ferrel环流新的概念模型，与过去的经典的环流概念模型相比能较好地描述高低空环流的基本特征，同时在考虑地球自转效应下，能够完满地解释中高纬度西风带的维持。

Through doing textual research, single and complex folk prescriptions of Shanzha and Biejia has been used un treating fatty liver and symptom of fibred liver, especially for the compatibility of these medicine which improve the therapeutic activities and has efficiency soothing the liver to regulate the flow of vital energy, strengthen the spleen by oozing wet firmly of invigorating blood cieculation etc.

这种中药超微粉碎技术是近年来在国际上发展起来的一项新技术，是提高药物溶解度和生物利用度的有效手段之一，它能将原生药材从传统的粉碎工艺得到中心粒径为75μm以上提高到现在的中心粒径为0.1～75μm，在该粒度条件下，一般药材细胞的破壁率不小于95%。

In addition, post wear was also found on posterior side of the tibial post when femoral cam is engaged to the post during deep knee flexions.

膝关节在伸直时，股骨元件接触於胫骨中心桩前侧而导致前侧磨损；膝关节在高弯曲角度时，股骨元件凸轮接触於胫骨中心桩的后侧导致后侧部分发生磨损。

The Eastgate Centre, a shopping centre and office block in Harare, Zimbabwe, has a mechanical cooling system made up of vents and flues that help hot air out of the structure.

Eastgate中心、一个购物中心和办公大楼在哈拉雷，津巴布韦，有一个机械冷却系统帮助热空气在结构外面的由出气孔和通气管做成。

The current picture is that all galaxies may have a supermassive black hole in their center, and that this black hole swallows gas and dust in the middle of the galaxies generating huge amounts of radiation - until all the nearby mass has been swallowed a

现在的照片是所有的星系在它们中心可能存在超大质量的黑洞，而且这个黑洞在星系中心吞咽气体与尘埃产生极大量辐射-直到所有附近质量被吞咽，而且过程停止下来。

Not visible here is an unusual central polar ring of gas circling out of the plane near the galaxy's center.

在这里我们看不到的是，一个在该星系中心附近难得的气态的中心极环。

In very short and several years, company at conducting management,the mechanism innovation,economic performanceses to all obtain can pleased result, get the approbation of the all levels leadership, two 00 five years December 30th, the GPS product passes a national security to guard against to report to the police the system product quality direct examination center,public security official's department safety guards against to report to the police the system product quality direct examination test center,safety in Shanghai City to guard against the product quality direct examination department of examination report.

在短短的几年中，公司在经营管理、机制创新、经济效益方面都取得了可喜的成绩，得到了各级领导的认可，二00五年十二月三十日，GPS产品通过了国家安全防范报警系统产品质量监督检验中心、公安部安全防范报警系统产品质量监督检验测试中心、上海市安全防范产品质量监督检验部的检验报告。

Under the Comprehensive Development Institute launched the first "China's financial center index" ranking sixth in the country of Dalian in the northeast region and the Bohai region ranking, the second level, that is the core of the regional financial center.

根据综合开发研究院首次推出的&中国金融中心指数&排名，大连在全国排名第六，在环渤海地区以及东北地区排名第一，属于第二级次，即核心区域金融中心。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。