first derivative element 中文意思是什麼

first derivative element 解釋
一階微分環節
  • first : adj 1 最初的,最早的。2 最上等的,第一流的。3 基本的,概要的。4 高音(調)的。n 1 最初,第一;第...
  • derivative : adj. 導出的;派生的。n. 1. 派生物。2. 【語言學】派生詞。3. 【化學】衍生物。4. 【醫學】誘導法[劑]。5. 【數學】導數,紀數,微商。adv. -ly
  • element : n 1 要素;成分;(構成)部分;分子。2 【化學】元素;【數學】元,素;【機械工程】單元;單體;【無...
  1. In the first part of the paper, on the basis of the weather processes of huai he basin from june to august in 1998, the difference and reliability of the two reanalysis data game and ncep from the fields of basic element, derivative, precipitation, and surface flux were studied by diagnostical and statistical methods. the results showed that the game reanalysis data is more reliable than ncep / ncar reanalysis data at the bottom and mid - high levels of troposphere, and at the precipitation and surface flux fields the case is just the same. in addition, the paper revealed that the game reanalysis data can show the evolution of the southwest vortex but the ncep / ncar reanalysis data cannot do so

    在第一部分,本文以1998年6 - 8月我國江淮地區的天氣過程為背景對game和ncep兩組不同的再分析資料的基本要素場、導數場、降水量場和地面通量場用氣候診斷和統計的方法進行了對比分析,結果表明,在對流層低層和中高層game再分析資料的基本要素場及地面的降水場和通量場較ncep再分析資料更為準確; game再分析資料能很好地反映出西南渦東移並影響江淮大暴雨的重要天氣特徵,而ncep資料則反映不出這一現象。
  2. Then it may be generally applied in engineering. we note that it is the first time that the o ( h6 ) cionvergence of the derivative at nodes is achieved by this technique for bicubic finite element, which is proved in the third chapter

    注意到利用這種恢復技術對雙三次矩形元我們第一次在節點處獲得了導數的o ( h ~ 6 )強超收斂率,本文第三章給予了理論證明。
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