查询词典 Antarctic Circle

Thus, evaluation of the minimum zone circle could be solved effectively.Three methods of assessment of roundness error were proposed in this dissertation. Based on the criteria of the minimum zone circle, minimum circumscribed circle and maximum inscribed circle and convex hull, a unified approach was proposed to evaluate roundness error of the minimum zone circle, minimum circumscribed circle and maximum inscribed circle. Evaluation of the minimum zone circle, minimum circumscribed circle and maximum inscribed circle was fulfilled with rotation based the contact pattern. The minimum circumscribed circle and maximum inscribed circle were evaluated with curvature and the curvature circle.

本文提出了三种圆度误差评定的方法：根据最小区域圆、最小外接圆、最大内接圆在极坐标系下的判别准则，利用计算几何中的凸壳理论，提出了一种统一的评定方法，实现了对最小区域圆、最小外接圆、最大内接圆的误差评定；基于接触斑点的检验原理，利用旋转法，实现了最小区域圆、最小外接圆和最大内接圆的误差评定；利用曲率和曲率圆，实现了对最小外接圆和最大内接圆的误差评定。

First, this article introduced 2 grade of rotary kiln principle of work and the equipment, to rolled the circle mechanics behavior to carry on the analysis, proposed - rolled the circle - under roller's rotary kiln overall modelling based on the tube body - kiln liner - big tooth ring, to rolled the circle - under roller's contact stress to carry on the finite element analysis the method, and obtained rolled the circle contact stress the size and the distribution rule, finally indicated that rolled the circle contact stress mainly to have two main peak values and the sudden change in one week, appeared is rolling the circle and the under roller contact area; Then, rolls the circle the stress to regard as is the principal stress unknown plane stress test, the use quite mature modern test technology, proposed rolls the circle stress test the principle and the plan, and to rolled the circle the stress to carry on the scene test, the stress which the scene test analysis result and the finite element analysis calculated has compared, had proven the whole method modelling's finite element analysis method's rationality and rolled the circle - under roller contact stress the result accuracy; Finally, uses ANSYS APDL the re-development technology, in view of 2 grades of rotary kilns, rolled the circle - under roller contact stress the overall finite element analytic method to carry on the re-development.

首先，本文介绍了2档回转窑工作原理和装置，对滚圈的力学行为进行了分析，提出了基于筒体-窑衬-大齿圈-滚圈-托轮的回转窑整体建模，对滚圈-托轮的接触应力进行有限元分析的方法，并得到了滚圈接触应力的大小和分布规律，结果表明滚圈接触应力在一周内主要存在两个主要的峰值和突变，都出现在滚圈与托轮接触区域；然后，把滚圈的受力看成是主应力未知的平面应力的测试，利用比较成熟的现代测试技术，提出了滚圈应力测试的原理和方案，并对滚圈的应力进行了现场测试，现场测试分析结果与有限元分析计算出的应力相比较，证明了整体法建模的有限元分析方法的合理性和滚圈-托轮接触应力的结果的正确性；最后，利用ANSYS的APDL的二次开发技术，针对2档回转窑，就滚圈-托轮接触应力的整体有限元分析法进行了二次开发。

Regional variation difference was very large with more ice in the eastern Antarctic, obviously less ice in the west Antarctic, both sides of the Antarctic Peninsula, especially in the Weddell Sea and the Bellingshausen Sea. The sea ice variation trend in the eastern and western Antarctic is always in opposite phase.

研究表明20世纪70年代后期是多冰期；80年代是少冰期；90年代南极海冰属于上升趋势，后期偏多，区域性变化差别大，东南极海冰偏多，西南极海冰即南极半岛两侧尤其是威德尔海区和别林斯高晋海的冰明显偏少。

The relationship between the minimum zone circle, minimum circumscribed circle and maximum inscribed circle was studied. Based on their relationship, the minimum zone circle and minimum circumscribed circle, maximum inscribed circle were transformed mutually.

本文研究了最小区域圆与最小外接圆、最大内接圆特征点的相互关系，实现了最小区域圆与最小外接圆、最大内接圆的相互转化，可有效解决最小区域圆的误差评定。

Yangtze Delta Urban Economic Circle, Zhujiang Delta Urban Economic Circle, Beijing-Tianjin-Hebei Urban Economic Circle, Chengdu-Chongqing Urban Economic Circle, and Wuhan Urban Economic Circle are five important urban economic circles, among which, four economic circles except Wuhan Urban Economic Circle have club convergence phenomenon and this club convergence is greatly related to industrialization degree, inner economic structure and innovative ability of the five economic circles.

长江三角洲城市圈、珠江三角洲城市圈、京津冀城市圈、成渝城市圈、武汉城市圈是我国五个重要的城市圈；其中，除武汉城市圈外其他四个城市圈均存在不同程度的俱乐部趋同，而且这种趋同和五大城市圈的工业化程度、内部经济结构及创新能力有很大关系。

December 12, 2006 in Yanglin in support of the main ring began to run, followed by Circle in the sharp group blog Management Forum team support, advice and help, in the high mountains on being aware of small, Taoyuan Daisen, high quality, such as Cong-jie joined the circle of the Lord, in the main consisting of classic circle the tireless efforts of the management team, we were sharp double blog and Sina blog circle circle of outstanding performance -82 million in the 620,000 rise blog circle

去年的今日，在和群体文化交流的基础上，我们从横向的博圈交流向跨越网站的博客文化传播领域延伸，我和一群不怕争议不畏艰难的创新者大胆的尝试着，并以身体力行的榜样作用协同团队成功的组织了以下活动

Several key research fields,including monitoring and evaluation of Antarctic mass balance throughout field measurement,GPS,satellite techniques and digital modelling;Atmospheric and environmental chemistry as well as climate record in Antarctic snow and ice;Deep ice core study and its comparison with other paleoenvironmental records,are currently focused in Antarctic glaciological study.

南极冰盖净物质平衡的观测和估算，冰盖物质平衡与气候变化的预测模型；南极冰雪大气、气候和环境化学；南极深冰芯分析，及其与其它古环境记录的对比研究，是目前南极冰川学研究的几个热点、关键问题。

Combining a new geoid model (EIGEN-GL04S) recovered from GRACE mission and the KMSS04 model, a new mean dynamic ocean topography model are estimated over the Antarctic region. The surface Antarctic Circumpolar Current field and its Polar Front and sub-Antarctic Front are derived from MDT after filtering with a wavelet denoising method.

联合基于GRACE重力卫星观测资料恢复的重力场模型(EIGEN-GL04S1)和卫星测高推求的平均海面高模型(KMSS04)来构造南极绕极流区域的平均海面动力地形，并利用小波滤波方法去掉短波及噪声信号，进而推算大、中尺度的绕极流。

To date,the Antarctic Treaty,the Antarctic Treaty Consultative Partiesand the Antarctic Treaty Consulta- tive Meetingsare still the best methods which are treating and resolving international affairs and management of the Antarctica.

由于南极洲独特的自然地理、生态环境、富有资源的特殊性和政治背景的复杂性。

The result shows that air temperature variation at the peninsular can be a good reflection of the Antarctic sea ice oscillations, which means a negative correlation between air temperature and sea ice anomaly near Antarctic Peninsular; a positive correlation between air temperature of Antarctic Peninsular and the sea ice anomaly at Ross Sea.

结果表明，南极半岛地区的气温变化可以反映南极海冰涛动的变化特征：气温距平和南极半岛附近海冰距平存在密切的负相关，和罗斯海外围区域的海冰距平存在正相关关系，能够较好地反映出南极半岛气温与南极海冰涛动以及ENSO之间的紧密联系。

Based on the construction of international financial centre, we have pushed forward the explorations in the integration of cultural industries with financial services.

2010年及整个"十二五"期间，上海文化产业面临更有利的发展时机、更坚实的发展基础和更完善的发展环境。

The koala is an animal with a large bag in its body.

树袋熊用它的身体的一个大的袋子是一只动物。