查询词典 Ritt

This dissertation is changed into two parts. The first part, the theory and application about Wu-Ritt differential characteristic sequence method are discussed, which involves the theories of differential equations, abstract algebra and computer algebra etc.

本文共分两部分，第一部分讨论微分特征列法的理论和应用问题，涉及到微分方程，抽象代数，计算机代数等重要学科。

The computer algebra and Wu-Ritt elimination method are employed as the tools to deal with this problem.

第一章简单介绍了本文所涉及到的学科的起源和发展过程，以及国内外学者在这些方面所做的工作和已经取得的一些成果。

Then Lars Lokke Rasmussen, the slightly schoolboyish prime minister, and Ritt Bjerregaard, the mayor of Copenhagen, take the stage.

孩子样的丹麦首相拉尔斯洛克拉和哥本哈根市长蕾特·毕杰芮加德一起走上讲台。

Daily. Ritt spices - to a high starting point, high standard, high-quality and advanced sales model, with excellent marketing

丽特香料-以高起点、高标准、高品质和先进的销售模式，配以优秀的营销

Wuhan Belden Ritt since its establishment in 2000, has been committed to digital print media production, import and export business, market development and product sales.

武汉百通丽特自2000年公司成立以来，一直致力于数码打印介质的生产、进出口业务、市场开拓以及产品销售。

Daily. Ritt spices - to a high starting point, high standard, high-quality and advanced sales model, with excellent marketing and technical team, in the spirit of "sincerity in order to treat people, Springboard to act" principle to provide our clients with quality, price reasonable, safe and stable quality products.

丽特香料-以高起点、高标准、高品质和先进的销售模式，配以优秀的营销、技术团队，本着&诚以待人，毅以处事&的原则，为广大客户提供质量上乘、价格合理、安全稳定的优质产品。

Ritt Spices Ltd., Shenzhen (Sales Dept.) and set up the Company in August 1997, when only the company's products abroad agent of a company, since my company has undergone enormous changes, have their own trademarks, there is its own technical backbone, there is a strong global procurement team, have dedicated to customer service sales force.

深圳市丽特香料有限公司本公司建立与一九九七年八月，当初只是代理国外公司产品的一家公司，发展至今我公司有了翻天覆地的变化，有了自己的商标，有了自己的技术骨干，有一支强有力的世界性的采购队伍，有专门为客户服务的销售队伍。

As the horrible murders continue, Ritt is unknowingly pushed into the killer's games and he soon becomes a target of the police.

凶器主要是剃刀和斧头，犯人的做法就和小说内容一摸一样。这给警方带来了很大的困惑和谜团。

The video-killer is on the loose and Ritt must find out the truth before it's too late.

Ritt必须找出真相在一切都太迟之前。不过俗话说冤有头、债有主。杀人狂终究浮出水面，原来他

Minister of Food, Agriculture And Fisheries:ritt bjeregaard

贸易和工业大臣：阿妮塔·巴伊布德加尔

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。