未選用面積 的英文怎麼說

中文拼音 [wèixuǎnyòngmiàn]
未選用面積 英文
non-designated area
  • : Ⅰ副詞1 (沒) did not; have not 2 (不) not Ⅱ名詞1 (地支的第八位) the eighth of the twelve ear...
  • : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
  • : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
  • 選用 : select and use [apply]
  • 面積 : [數學] area
  1. To discuss the natural vulnerability of different coasts to future sea - level rise, the paper selects the coasts along the pearl river mouth as the studied area. after analyzing the impacting factors of natural vulnerability along the pearl river mouth, the paper divides the coastline of approximately 412km into 25 15 - minute gird cells. for assessment purposes, the six variables including geography, relative sea - level change, average tide range, regional slope, shoreline erosion or accretion rates and tropic cyclone impacting frequency are selected as assessed variables

    為了探討不同海岸帶對來海平上升的自然脆弱性,本文以珠江口沿岸作為研究個案,在分析珠江口沿岸自然脆弱性的影響因子的基礎上,把珠江口沿岸412km岸線劃分為25個15 15的網格單元,取了地質、海平上升率、平均潮差、區域海岸坡度、海岸侵蝕/堆率、熱帶氣旋影響頻率6個評價指標,應cvi指數評價公式對珠江口地區進行海岸脆弱性評價,並建立海岸脆弱性評價數據庫,繪制了珠江口沿岸1 : 2 , 000 , 000的數字化cvi圖。
  2. Adopting the actual county - grade database of land use firstly founded in china, combining with the comprehensive influential factors of land use change, using the correlative statistic software and the mathematic analytical methods ( principal component analysis, gray relating analysis, multivariate time series markov chain analysis, multivariate regression analysis, gm ( 1, 1 ) gray model, gray series gm ( 1, n ) model methods etc ), this paper analyses the dynamic change of land use and driving force in jiang ' an county qualitatively and quantitatively. the results indicate : 1 the land resource per capita and the area of single - land - use type in jiang ' an county are not prior to other places in yibing city or sichuan province. however, the terrain is dominant in choosing the way of land use

    本文採全國首批建立的「縣級土地利現狀數據庫」的基礎數據,結合影響土地利變化的經濟、社會、環境等綜合因素,採相關分析軟體( dps 、 spss )和數學分析方法(主成分分析、灰色關聯度分析、多元回歸分析、多元時空序列馬爾柯夫鏈分析、 gm ( 1 , 1 )預測模型分析、灰色序列gm ( 1 , n )模型分析等方法) ,對江安縣土地利變化及其驅動力進行定性、定量研究,研究結果表明: 1江安縣人均總的土地資源數量和單一土地利類型的數量在宜賓或四川省區域內均無優勢;地形對土地利方式的擇起著主導作;土地利變化的總趨勢是:耕地、林地、交通地和水域不斷減少,居民點及工礦地和不斷增加;景觀多樣性指數呈現「 」趨勢。
  3. Then the solving procedures of these bies by the rwg functions based moment method are elaborated, and the method of modeling complex objects built of arbitrary line, surface and volume structures is developed. in order to solve realize antenna and circuit problems, methods of adding excitations and concentrated loadings with moment method are deceloped, and matrix pencil ( mp ) method is used to deembeded the s prameters of antennas and circuits from the computed current distribution. some numerical results of practical complex antenna and scattering problems are presented to illustrate the veracity and effectiveness of the method

    在第一部分中,首先從電磁場的基本理論出發,基於等效原理和邊界條件以統一的方法建立了於分析金屬、介質及金屬與介質混合結構的邊界分方程,並歸納和比較了各類分的適范圍和優缺點;在此基礎上,給出了使基於rwg函數的矩量法求解各種邊界分方程的一般過程;研究了具有任意線、、體組成的復雜結構的電磁建模方法,並給出了各種多連接情況下基函數和知量的取方法;研究了使矩量法分析電路、天線問題時集總元件和激勵源的處理方法,並基於矩陣束方法( matrixpencilmethod )提取了電路和天線問題的s參數;最後通過分析一些工程中的復雜金屬天線問題和具有「金屬與介質混合結構」的散射和天線問題驗證了方法的準確性和高效性。
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