查询词典 stream

A side stream is recycled to the external feed stream of the column through an equilibrator as an internal feed stream.

塔的一侧线流股经过一个平衡反应器完成平衡反应后，作为内部进料流股与原外部进料混合后重新进入精馏塔内进行分离操作。

The numerical algorithm which can provide better stability,accuracy and efficiency in computing time was developed to solve complex cryogenic distillation problems. A side stream was sent to an equilibrator as an internal feed stream and then mixed with the external feed stream of the column.

塔的一股侧线出料流股经过一个平衡反应器完成平衡反应后，作为内部进料流股，与原外部进料混合后重新进入精馏塔内进行分离操作。

Jin Shajiang trunk stream can develop the fluvial drop that use to be rice of 2 1 80, trunk stream of river of elegant rice huller can develop drifting fluvial drop to be rice of 2 82 7, the big trunk stream that cross a river can develop the fluvial drop that use to be 2 636 rice.

金沙江干流可开发利用的河流落差为 2 1 80米，雅砻江干流可开发利用的河流落差为 2 82 7米，大渡河干流可开发利用的河流落差为 2 636米。

In this paper, the supply chain stream of funds has been classified into the internal stream of funds and the exterior stream of funds. The process of inventory cost flowing in the supply chain management is analyzed thoroughly. A mathematical model of the two-echelon inventory system taking account of price discounts is developed. A simple and effective approach is proposed for finding the optimal order number. The solution procedure is shown to be effective with a numerical example.

该文把供应链资金流区分为内部资金流和外部资金流，对供应链管理中的库存费用流动过程进行了分析；建立了考虑价格折扣的两级供应链库存数学模型，并运用一种简单而有效的逼近方法求出了模型最优解，确定了供应链中各企业的最佳订货批量；最后用数值实例说明了该方法的有效性。

The layered video decoding system comprises a base layer decoder for receiving and decoding a base layer video stream; and an enhancement layer decoder for receiving an enhancement layer video stream and the decoded base layer stream, and generating a decoded enhanced video output, wherein the enhancement layer decoder includes: a plurality of inverse discrete cosine transform /IDCT modules; and a selection system for selecting one of the IDCT modules.

分层视频译码系统包括：基本层译码器，用于接收和译码基本层视频流；和增强层译码器，用于接收增强层视频流和所译码的基本层流，并生成译码的增强的视频输出，其中该增强层译码器包括：多个反离散余弦变换模块；和用于选择其中一个IDCT模块的选择系统。

Audio and video steams accord with MPEG-2 standard can form PES after packeted, and then PES steam can form tranport stream after multiplexer. The transmitter conduct a number of transport stream multiplexing ,then send out the signal via satellite,cable or terrestrial transmitting station.The end user receiver picks up the DTV signal,demultiplexes it and finally the MPEG-2 decoder presents the decoded audio and video stream to the user.

按MPEG-2标准编码后的音频视频流经打包之后形成打包基本流，PES经过复用之后形成传输流，发射端进行多个传输流复用，最后通过卫星、有线电视及开路电视等不同媒介传输方式进行传输；接收端经信号接收，解复用，解码后显示给用户原先的音、视频节目。

On his way back to his native city he met a weak old woman waiting to be helped across a mountain stream.kind and polite,jason carried the old lady on his back and walked across the stream.little had he thought that the old woman was just hera herself .thus he got the help and protection of a power fulfriend at the beginning of his life.as he lost one shoe in the stream he had to enter pelias'' palace in only one shoe.

在返回祖国的路上，他遇到一位老婆婆。她希望能有人帮她渡过山里的一条小溪。出于善良的天性和谦恭有礼的本能，杰森背起老人，淌过了小溪。他并未想到这位老婆婆竟是赫拉本人。因此他在生活的起点便得到了一位神通广大的朋友的帮助和保护。由于他在过河时遗失了一只鞋子，他不得不赤着一只脚走进了珀利阿斯的宫殿。

Firstly,the wavelet-based contourlet coding using an SPIHT-like algorithm is utilized on the plain image,and as a result,the compressed datum stream could be achieved which is then mapped to a 3D bit matrix. Afterward,a chaotic sequence is generated by Lorenz chaotic map,and it is preprocessed to a bit sequence which is used to permute and substitute the elements of the 3D bit matrix achieved above. In the end,the processed 3D matrix is mapped back to datum stream,and the encrypted compressed image could be achieved if decoding and inverse transform are performed on the datum stream.

首先采用基于小波的Contourlet变换的类等级树集合分割编码算法对明文图像进行压缩，得到压缩数据流，然后将压缩数据流映射为一个三维位矩阵；利用Lorenz混沌映射产生混沌序列，并对其进行预处理得到比特值序列，根据比特值序列对上述三维位矩阵进行置乱和替代操作；将置乱和替代后的位矩阵重新映射为数据流，并对其进行解码和反变换操作，得到加密后的压缩图像。

This thesis introduce the concept, character, and domestic and foreign circumstance of modern distance learning, analyze the possibility of developping distance learning, clarify the character and requirement of modern distance learning, after that using stream media technology to analyze the theory of technology, research the realization of stream media and the synchronization video courseware with teach planning and the encryptting method of stream file. At the end of this thesis, it research software and hardware system of distance learning, choose the phototype of the system, research system structure, flow and character.

本课题首先介绍了现代远程教育的概念、特点以及国内外现状，并对我国大力发展现代远程教育的可行性进行分析，明确现代远程教育的特点及需求，然后以流媒体为主要技术手段，分析技术原理，研究流式传输的技术实现、视频课件与教案的同步以及视频流文件的加密方法，最后对远程教育的软件、硬件平台进行研究，对系统进行选型，研究系统的结构、流程及特点，对使用到的MicrosoftWindowsMedia技术进行重点研究，然后提出流媒体的传送与播放的关键步骤，从而给出基于WindowsMediaService的远程教育系统，最后分析了基于流媒体技术的远程教育的特点。

A review of river management history in various countries is used in this thesis to discuss the future development trends of river management and the relationship between river health and river management.Based on the characterization and assessment of river health, Five components of stream condition are presented in this thesis to characterize river health: water quality, aquatic life, physical form, hydrology and streamside zone. It is obtained by comparing the methods and criteria that have been developed by others and reviewing the river assessment practices in various countries. Accounting for the features of urbanization region in plain river network, an indicator system for river health assessment which provides scores for 5 subindices and 17 indicators is established. With almost 200 stream reaches in Shanghai as objective of study and Liwa stream and Zhangjiabang Creek as case study, the application of river health assessment in the planning, baseline survey and post-project appraisal of river management is explored by collecting historical literature and field monitoring. Consequently, some suggestions to improve river management effectiveness are presented from the angle of river health.

本文回顾河流管理漫长历程并指出当前国际发展趋势，进而辨析河流健康状况与河流管理的关系；以河流健康状况的表征和评价为核心，通过对国外RIVPACS、AUSRIVAS、IBI、RCE、ISC等河流健康状况评价方法的分析和比较，以及对美国、英国、澳大利亚、南非等国家河流健康状况评价实践的总结，尝试从理化参数、生物指标、形态结构、水文特征、河岸带状况5个方面全面表征河流健康状况；结合中国东部平原河网地区自身特点，通过评价原则、评价指标、评价标准、评价权重确定等步骤，初步构建了包含河流水文、河流形态、河岸带状况、河流水质以及河流生物5个一级指标(共17个指标)的河流健康状况评价指标体系；在此基础上，采用资料收集与现场实测相结合的方法，以上海近200条中心河道为研究对象，以丽娃河和张家浜为典型案例，分别就河流健康状况在河流管理规划、现状评估以及后评估中的应用进行实证研究，并尝试探讨如何从这三个阶段利用河流健康状况评估改进河流管理的对策。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。