視在波前時間 的英文怎麼說

中文拼音 [shìzàiqiánshíjiān]
視在波前時間 英文
virtual front time
  • : Ⅰ動詞1. (看) look at 2. (看待) regard; look upon 3. (考察) inspect; watch Ⅱ名詞(姓氏) a surname
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  • : Ⅰ名詞1 (在正面的) front 2 (次序在先的) first; top 3 (過去的; 較早的) ago; before; preceding...
  • : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  1. Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources

    基於以上考慮,論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討:全面回顧了「可持續發展」概念的由來與演變,對國內外「可持續發展」的研究現狀進行了述評,並對「可持續發展」概念的科學內涵進行了深入探討;對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述,對目仍然存的一些錯誤觀點和混亂認識提出了自己的見解;全面闡述了地下水資源變值系統理論的內容和意義,並與傳統的地下水資源計算評價方法進行了對比分析,結合實例具體說明了方法的應用;深入分析了地下水資源預測預報工作的極端重要性和復雜性,對傳統的地下水資源動態預測方法進行了全面的評述,指出了各類預測預報方法的特點及適用條件,對最近二十多年剛發展起來的小分析技術的主要思想和方法及其應用范圍,以及號稱第五代計算機語言的matlab軟體和附帶的小分析工具箱進行了介紹,並應用於地下水動態過程線的分析,採用序列中的b ? j法,蒙特卡羅方法,與地下水資源變值系統理論相結合,探討了地下水動態資料分析和地下水資源預測預報的新思路;綜合分析了現今各類地下水管理模型的特點及缺陷,將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度,使模型更準確、更實用;對保證地下水資源可持續開發的內部條件和外部條件進行了分析,內部河海人學博卜學位論文言、摘要、目錄條件主要是正確的資源觀,科學的資源計算與評價方法,可靠的資源預測預報技術,可操作的資源管理措施,外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。
  2. In the first part, the basic knowledge of particle scattering in meteorology and physics was introduced. the particles to be discussed include aerosol particles, fog droplets and raindrops and the em wave band in the discussion is near - infrared. in the second part, the mie theory was briefly reviewed and was applied to investigate the scattering characteristics of spherical atmospheric particles, the result shows that in the visibility measurement meter using forward - scattering method, when the working wavelegth is between 0. 8 m ~ 2 m, the scattering angle is between 25 ~ 40, the distinguishability and the relative scattering intensity would be better than those under other conditions. in the third part, the superellipsoid was used to describe a wide range of shapes such as spheres. ellipsoids and cylinders. an improved t - matrix method which can be used to calculate arbitry shaped particle ' s scattering field was introduced, and the scattering characteristics of non - spherical atmospheric particles was investigated with this method

    計算結果表明,從相對散射強度、同一方向上不同粒子散射的可區分程度來看,散射式能見度探測儀器中,工作長介於0 . 86 m 2 m ,探測角度選取向25度40度,探測的結果將會是比較理想的。第三部分中,使用超橢球方程來統一描述各種非球形粒子的形狀,然後使用t矩陣方法計算了一些形狀的非球形粒子的近紅外散射特性。另外,本文中還針對球形粒子的散射場提供了一種三維可化方法,使對散射場強度的空分佈的理解更加簡單,直觀。
  3. And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion

    論文首先描述了數字電地面廣播的需求條件,技術難點和目的問題,並重點分析了dvb - t系統結構流程,核心技術及系統通道特性和參數,該系統採用了cofdm (編碼正交頻分多路復用) ,大量導頻信號插入和保護隔技術等核心技術,使之能抵抗高電平( 0db ) ,長延的靜態和動態多徑失真,有利於數字和模擬電的混合傳輸,它的多載調制模式功能和性能移動和便攜接收、同頻網等方面具有獨特的優勢。
  4. The photoabsorption properties of three kinds of br molecule films ( the wild - type br, the chemical enhanced br, the gene - variant br ) are investigated by measuring their absorption spectrum. using the gene - variant br film as a light - modulator, by the experiment of write - readout image and the analysis of image contrast, the light - modulated property of the modulator is studied. the relationship between wavelength of the modulated light and response time of the modulator is discussed emphatically

    本論文概述了細菌紫紅質分子結構、功能特性及研究發展的歷史與現狀,介紹了目已有的和潛的一些重要應用,通過對吸收光譜響應特性的測試研究了三類br分子薄膜(野生型,化學修飾型,基因修飾型)的光吸收特性,通過圖像的記錄/讀取實驗及圖像的對比度分析探討了基因改性型br分子薄膜的光調制特性,著重研究作為一個光調制器件對調制長和調制的響應特性。
  5. Then the vvriter put fonvard total - cost leading strategy, concentration strategy on intemational market ; and fiom a long - term point of view, the vvriter put fonvard entirety strategy on domestic market and localization strategy on the intemational market the analyzes break through the method that regards strategy making as the extend of rolling plan undcttheplanningsystemoftiiinking, and break through 5 - year system of strategy time - unit this can meet the need of the strategic development fiom the view of enterprise life - cycle

    上述分析充分利用了特行業結構模式,並通過swot法分析了優勢、劣勢、機會、威脅,進而提出了國內市場的總成本領先戰略、國際市場的集中戰略,以及從長遠看,國內市場的向一體化戰略與國際市場的本土化戰略。這種分析論證突破了以往計劃思維方式下將戰略制定同計劃的滾動延伸,並且戰略單位上突破了以往的5年制,這也是從企業生命周期出發實現戰略發展的需要。
  6. Records exist of it having been played in persia in 2000 bc. in medieval europe, pictures of men playing a game with hooked sticks appear on stained - glass windows at both the canterbury and gloucester cathedrals. it became so popular by the middle ages that it was banned in england for a time because it interfered with the practice of archery, which was the basis for national defense

    據記載早公元2000年斯就已經有了該運動,英國的坎特伯雷和格魯賽斯特大教堂玻璃窗上都印有類似於現代曲棍球比賽的圖像,中世紀該項運動得到廣泛普及,但是英國過于重作為國家防禦基礎的射箭項目,而將曲棍球運動終止了一段
  7. Meanwhile, with the intercross and penetration of different knowledge, wavelet theory has applied to many other fields successfully. for example, in the video coding, with the multiresolutional nature of wavelet analysis, three dimensional wavelet video coding has been shown to be competitive with standard coders. although 3 - d wavelet video coder usually require a larger buffer and incur a longer delay than standard coders, an important feature of the 3 - d wavelet approach is the support of scalabilities in the compressed video

    ,隨著各門學科的相互交叉與滲透,使得小理論成功地許多領域得到了廣泛的應用。例如,頻方面,由於小本身的多解析度的數據結構為支持可伸縮編碼提供了一個良好條件,所以與標準頻編碼相比,小編碼方法具有更大的發展景。
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