time-and-space restriction 中文意思是什麼

time-and-space restriction 解釋
時間和空間限制
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • space : n 1 空間；太空。2 空隙，空地；場地；（火車輪船飛機中的）座位；餘地；篇幅。3 空白；間隔；距離。4 ...
  • restriction : n. 1. 限制，限定。2. 拘束，束縛；自製。3. 【邏輯學】限定。
  1. So, studying the manufacturing management information system based on internet, which can share and exchange useful information without any space and time restriction, improves the efficiency of management, and transforms and promotes the traditional manufacture, has become a trend

    因此，研究基於internet的企業生產管理信息系統，突破企業在信息溝通和交流上的限制，提高企業的經營管理效率，利用信息技術來改造和提升傳統的製造業，成為管理信息系統的發展趨勢。
  2. So for, because of the restriction of experiment boundary condition that different original condition and over ideal theorization model that is mentioned in the preface, it is imminence needs to understand the changing of reality soil on the true wave loading in true time and space so that validated and lead next research in theory and simulation

    正如在前言中對此方面研究評述所提及，目前的研究被與實際迥異的實驗邊界條件和過分理想化理論模型制約，迫切需要了解真實的時間和空間尺度下，真實的土體在真實的波浪荷載作用下將發生怎樣的變化，以驗證和引導我們進行的理論與模擬研究。
  3. The main work of this paper was as fellows : ( 1 ) generalized the development of pre - stressed steel structure in our nation and abroad, and pointed out the main problem in practice ; ( 2 ) presented the mechanism of pre - stressed steel structure and revealed its applicable range ; ( 3 ) established the optimization design model for pre - stressed steel structure, which accounts for constraints on stresses and displacements of structure ; ( 4 ) brought forward the optimization design method, which combined linear programming and the principle of full restriction, through which we can obtain the magnitude of each time pre - stress and the optimized sections of each members of structure ; ( 5 ) analyzed the best times of pre - stress and pointed out that 2 ~ 3 times is preferable ; ( 6 ) conducted optimization design on large - space steel roof, horizontal parallel steel truss with local cables, horizontal parallel steel truss with global cable, and ultra - static steel truss, the result of which indicated that the multiple pre - stress structure is very economic ; ( 7 ) compared different schemes of cable placement for horizontal parallel steel truss, and the results showed that the local cable only unloaded the second girders, but had no response on the first girders and stomach poles, while global cable could unload the second girders and the stomach poles outside of turning point of cable, thus proving that global cable is more economic than local - cable

    本文的主要工作是：對國內外預應力鋼結構的發展歷史及現狀作了綜述和總結，指出當前預應力鋼結構工程實踐中存在的主要問題；闡述了預應力鋼結構的受力機理，並指出預應力鋼結構的適用范圍和特點；在考慮結構應力和變位約束的條件下，建立預應力鋼結構優化設計模型；提出多次預應力鋼結構優化設計方法和步驟，採用線性規劃和滿約束準則相結合的優化方法，可優化設計出施加的每一級預應力的大小，並得到結構各部分的優化截面；對多次預應力最佳的施加次數作了分析，並建議以2 3次為宜；為驗證文中理論和方法，分別對大跨多次預應力鋼屋架、局部布索的水平平行弦鋼桁架、整體布索的水平平行弦鋼桁架和局部布索的超靜定鋼桁架等算例進行了優化設計，經濟效益明顯；對水平平行弦鋼桁架的幾種施加預應力的方案進行比較，對于局部布索，預應力只對下弦起到卸載作用，對上弦和腹桿基本不起作用；而整體布索預應力除對下弦卸載外，對索折點以外部分腹桿也起到卸載作用，經濟效益好於局部布索。
  4. Time - and - space restriction

    時間和空間限制
  5. After the paper sufficiently considered creation algorithmic of triangulated irregular network in time and space and analyzed three creation algorithms of tin - divide - conquer, triangulation growth, incremental insertion, the paper adopts to a new algorithm that takes advantages of divide - conquer and triangulation growth. it can create tin quickly. the paper also uses break lines, terrain feature lines, building borderlines to be restriction condition and creates triangulated irregular network based on restriction

    綜合考慮不規則三角網生成演算法的時間和空間性能，分析了常用的三種tin生成演算法：分割-歸並法、三角網生長法和逐點插入法，筆者採用分割-歸並法與三角網生長法相結合的演算法，快速生成了tin ，並以斷裂線、地性線、建築物邊界為約束條件，最終生成具有約束的不規則三角網。
  6. Using vrl in education can break through the space - time restriction of traditional experiment, reduce the experimental outlay, and evade the dangerous operation in traditional experiment

    虛擬實驗室應用於實際教學具有「突破傳統教學實驗的時空局限性」 、 「減少實驗經費開支」 、 「規避傳統實驗的危險操作」等等優點。
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