查询词典 delta

They include the fundamental concepts of jet bundle geometry needed in describing time-dependent mechanical systems, decomposition of jet bundles into a direct sum according to the constraints, horizontal distributions on constraint mainifolds, the global formulation of D'Alembert-Lagrange's equations and Chaplygin's equations, and nonholonomic mechanics on a Riemann-Cartan manifold. Meanwhile, the geometric significance of Chetaev's conditions and $\rd$-$\delta$ commutation relation are discussed in depth.

本文主要综述非完整约束系统几何动力学的外附型和内禀型Lagrange理论，包括非定常力学系统所需要的射丛几何学的基本概念、射丛按约束的直和分解、约束流形上的水平分布、 D'Alembert-Lagrange方程与Chaplygin方程的整体描述、以及Riemann-Cartan流形上的非完整力学，文中对Chetaev条件和d-δ交换关系的几何意义作了深入讨论。

According to the analysis, will have 30 ～ the tourist of 35% can go to area of delta of the Yangtse River continueing to travel, with this computative, half an year inducts 2000 much tourists when the lieutenant general.

据分析，将有30～35%的游客会去长江三角洲地区继续旅游，以此推算，半年当中将吸纳2000多万游客。

I play the violin as well; I am the concertmaster of the senior division of the Delta Youth Orchestra, and also play in the Vancouver academy of music symphony orchestra and the Vancouver Philharmonic Orchestra.

我也会演奏小提琴；我在年青人管弦乐队里做高级音乐指挥，也在温哥华高等学校的音乐交响乐团和温哥华爱乐交响乐团管弦乐队艺术学校里演奏过。

The two most famous current aircraft to use the delta wing are the Concorde and the Space Shuttle.

两个最有名的飞机目前使用三角翼是协和和航天飞机。

In the synergetic development phase, airports between two sides will be in a policy environmemt that's more freee, equal and condign, and are provided with inherent drive of forming Pearl River Delta regional multi-airport system through synergetic action.

在协同发展阶段，两地机场将处于一个更为自由、平等的政策和发展环境中，具备了通过协同作用构建珠三角区域多机场系统的内在动力。

Yangtze River Delta region have the confidence to face this challenge, to translate it into an opportunity to seek better and faster development.

长三角地区有信心直面这种挑战，把它化为一个机遇，谋求又好又快的发展。

"Plateau Eagle" advanced trainer adopts the aerodynamic arrangement of double delta wings with high lift-drag ratio, the leading edge of outside wing rotated conically and air inlet beneath both sides ribs, and has a good take-off/landing performance and subsonic/transonic speed performance in medium-low altitude.

"山鹰"高级教练机采用高升阻比双三角机翼气动布局，外翼前缘锥形扭转以及两侧肋下进气道，具有良好的起降性能和中低空亚跨音速性能。

It is now in the pearl river delta the connector manufacturers provide excellent production equipment.

目前已为珠江三角洲众多的接插件生产商提供优质的生产设备。

The Pearl river delta has 60m residents too, but is not so much a country as a huge industrial conurbation, with Hong Kong at its southern edge.

他表示，在目前700万人口的基础上，香港需要进一步增加四成人口，才能追得上国际金融中心纽约及伦敦的实力。

Then a convex optimization algorithm is presented to obtain the optimal guaranteed cost controller in the sense of mi...

所得结果将连续和离散模糊系统的有关结论统一到Delta算子框架内。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。