本地數字交換 的英文怎麼說

中文拼音 [běndeshǔzìjiāohuàn]
本地數字交換 英文
dle digital local exchange
  • 本 : i 名詞1 （草木的莖或根）stem or root of plants 2 （事物的根源）foundation; origin; basis 3 （本錢...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
  • 交 : Ⅰ動詞1 （把事物轉移給有關方面） hand over; give up; deliver 2 （到某一時辰或季節） reach （a cert...
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 本地 : this locality; local; native
  • 數字 : 1. （表示數目的文字; 表示數目的符號） figure; digit; numeral; character; numeric character 2. （數量） quantity; amount
  1. The introduction of the v5 standard interface in exchange realizes the digital link between the local exchange and access network, makes the digital channel connect with the subscribers directly or more closely, and finally achieves the digital access network

    V5標準介面的引入使得接入網與本地數字交換機直接採用數字相連，使數字通道靠近或直接連接到用戶，實現了接入網的數字化。
  2. Although there have been many application instances in the field of input / output device technology, we need an specific project and technology route aimed at an given application. in this thesis, we combine the introduction and analysis of relative technology to describe the accomplishment of a coordinate collecting device which is based on incremental rotary encoder. this device is an specific device applied to collect the corrdinate displacement of ground image ’ s three - dimensional model created by full digital photogrammetric station. cpld chip and vhdl are applied in this device to carry out the following work : phase control of the electrical pulse created by incremental rotary encoder, counting the number of electrical pulse, controling the state of signal processing circuit, exchanging data between this circuit and pci control

    本文結合相關技術的介紹和分析，描述了一個基於增量式旋轉編碼器的坐標參量採集介面卡的實現，此介面卡是一種用於採集全數字攝影測量系統地面影像模型坐標位移量的專用設備，該設備採用cpld器件和vhdl語言實現增量式旋轉編碼器的脈沖信號鑒相和計數、信號處理部分的狀態控制以及和pci總線晶元ch365之間的數據交換和通信功能，同時該設備的驅動程序基於wdm模式，並且配置有結構良好的動態鏈接庫程序作為系統軟體和驅動程序之間的數據和控制交互中間介面，能夠方便地運行在windows98 / 2000 / xp操作系統平臺上，具有實時性強、工作穩定、通用性較好和性價比高等特點。
  3. Optical relay network technoiogy is to buiidup various teiephone networks by the flexible sdh transmission equipment working with stored program control switches. at present, it has been adopted by most of telecom operators in iocal networks of pstn and becomes an eff6ctive solution to imp the operation cost, improve the qos, as well as faciiitat6 the oam

    光中繼組網就是利用同步數字體系（ sdh ）傳輸設備本身組網的靈活性來配合程式控制交換機組成各種電話網路，在目前的公共電話交換網路（ pstn ）中的本地網路中，較多地被電信運營商所採用。
  4. Adsl technology can literally transform the existing public information network from one limited to voice, text and low - resolution graphics to a system capable of bringing simultaneous switched digital video and other advanced, interactive services to everyone ' s office or home

    Adsl技術確確實實地能把現有的、局限於傳輸聲音、文本和低解析度圖形的公共信息網改造成能同時將交換的數字視頻和其它高級互動式服務帶到每個人的辦公室或家庭的系統。
  5. Along with the coming of computer age, digitizing, broad banding and intelligentization became the trends of future communication progress. users put more expectations to communication service. access network connecting local exchange with user is an important part of telecom network

    隨著通信與計算機整合時代的到來，數字化、寬帶化和智能化已成為未來通信發展的方向，人類社會對電信業務從質量到業務種類都提出越來越高的要求，而接入網作為電信網的重要組成部分，連接本地交換機與用戶，是整個電信網的毛細血管和瓶頸，實現數字化、寬帶化和業務綜合化的關鍵。
  6. The paper discusses the development of web, browser / server mode conception and the content and mechanism of network security based on web, and also describes the basic conception and system of cipher theory, symmetric - based data encryption standard and advanced encryption standard and asymmetric - based rsa. it presents a detailed design of secrecy net of digital government, and advances a des - and - rsa - based security model of information exchange, which makes use of symmetric cryptographic algorithm to encrypt plaintext, and introduces public - key algorithm rsa to encrypt session key to compose digital envelope and to realize digital signature

    本文論述了web的發展及其browser / server模式概念，以及基於web的網路安全的內容與機制；闡述了密碼學的基本概念、分類，對稱密鑰密碼體制des與aes以及公開密鑰密碼體制rsa ；最後，利用一種基於des和rsa的信息交換安全模型，詳細地給出了一個數字政府的保密網系統設計方案。
  7. This paper has researched the 3 ? dimensional modeling 、 data construction 、 real texture mapping and texture edit of urban landscape 、 data exchange with 3d studio and autocad, developed the 3 ? d city modeling and visualization system ( vcm & v ) as one of series products of digital automatic mapping system ( virtuozo ) by visual c + + 5. 0 for windows 95 / nt and opengl, integrated vcm & v with gis software mapinfo professional 4. 0, build urban 3 ? dimensional visualization gis, and realized 3 ? dimensional visualization of digital chart

    本文研究了城市景觀的三維建模、數據結構、真實紋理映射和紋理編輯、與三維設計軟體3dstudio和autocad的數據交換，以visualc + + 5 . 0forwindows95 / nt及圖形庫opengl開發了全數字化測圖軟體virtuozo的系列新產品? ?城市景觀三維可視化系統（ vcm & v ） ，將城市景觀三維可視化系統與gis軟體（ mapinfoprofessional4 . 0 ）進行了集成，建立了三維可視化gis ，實現了數字地形圖的三維可視化。
  8. An. v interfaces at the digital local exchange - access network supporting v5 - transmission characteristics and performance design objectives for call handling and bearer channel connection management

    數字本地電話交換的v介面.支持v5的接入網路
  9. Counties and cities have finished five projects of construction including local telephone net, divided into - group exchange net, digital date net, digital mobile communication net and newspapers - and - periodicals

    17個縣市區已完成了本地電話網分組交換網數字數據網數字移動通訊網報刊發行微機網五項建設，全市有線無線交叉，模擬數字兼容，高中低檔並存，多功能多手段的現代先
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