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constraint characteristic中文翻譯

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  • 約束特性
例句與用法
  • Cobots ' passivity and constraint characteristics and their experimental study
    合作機器人的被動約束特性及實驗研究
  • Western project exploitation , in fact all project development , must be confronted with the threat of many kinds of regional risks owing to environmental constraint characteristics of the specific area
    項目必須置于特定的區域環境中進行,因而肯定要面臨項目區域風險的威脅。
  • Aiming at this problem , the main research issues and achievements in this paper are as follows : bi - directional data transformation between rdb and xml with semantic constraints preserved for most of existing researches on static data transformation between xml and rdb , dtd is taken as the schema description language for xml , and the semantic constraints are often lost during the transformation process . to overcome these disadvantages , the author adopts xml - schema , a standard schema description language proposed by w3c to replace dtd , as the description method owing to its more powerful functions than dtd , and of course with the syntax much more complicated . after analyzing the constraints characteristics in both xml - schema and relational schema , a semantic constraints - preserved algorithm is proposed which can realize the bi - directional schema mapping between rdb and xml through a formalized description of xml based on regular tree and a general expression for relational schema based on direct graph approach
    保留語義約束的xml與rdb雙向靜態數據轉換技術現有研究大多采用dtd ( documenttypedefinition ,文檔類型定義)作為xml的模式描述語言,并且在模式映射過程中丟失語義約束信息,本文分析了xml - schema ( xml - schema采用與dtd完全不同的語法,數據描述能力更強同時也更為復雜,已被w3c確定為替代dtd作為xml模式描述語言的標準)及關系模式的語義約束特征,通過基于正則樹的xml形式化描述方法以及基于有向圖的一般關系模式表示方法的研究,建立保留語義約束的xml - schema與關系模式的雙向模式映射算法,實現了xml與rdb的雙向數據轉換,較好地解決了xml與rdb在靜態數據轉換層面的數據集成問題,可有效滿足企業大量rdb數據面向xml的發布以及與日俱增的xml數據存入rdb的應用需求。
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