統計起伏 的英文怎麼說

中文拼音 [tǒngjìqǐfú]
統計起伏 英文
statistical fluctuation
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 起 : 起Ⅰ動詞1 （站起; 坐起） rise; get up; stand up 2 （取出; 取走） draw out; remove; extract; pull 3...
  • 伏 : Ⅰ動詞1 （身體向前靠在物體上; 趴） bend over; lie prostrate 2 （低下去） subside; go down 3 （隱藏...
  • 統計 : 1 （對有關數據的搜集、整理、計算和分析） statistics; census; numerical statement; vital statistic...
  • 起伏 : rise and fall; ups and downs; heave rolling; undulate; fluctuate
  1. Homogeneous nucleation is made possible by statistical fluctuations among molecular aggregates in the vapour.

    同質成核作用之所以可能，是由於蒸汽中分子凝聚的統計起伏。
  2. We find that the erraticity of event factorial moments is still dominated by the statistical fluctuations though the multiplicity is already several hundreds and several thousands

    最後發現，盡管事件多重數高達幾百，幾千，統計起伏仍然決定著erraticity的性質。
  3. Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed

    本研究在廣泛總結前人研究成果與研究經驗的基礎上，利用空間數據挖掘和地形地貌學的基本理論，以陜北黃土高原多地貌類型區為實驗樣區，以1 10000比例尺dem為樣本數據，探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構；確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構；系統總結了dem基本地形因子的提取演算法，並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析；提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法；擴充了arcviewgis軟體平臺中dem空間分析的基本功能；實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發；完成了對黃土高原多地貌類型區（樣區）地形信息空間分異特徵的分析。
  4. Based on the geometry between sunshine ray and real terrains, the distributed models were developed to simulate the extraterrestrial radiation and possible sunshine duration over rugged terrains respectively. according to the principles of direct and diffuse radiation on tilted surfaces, the distributed models to estimate the direct and diffuse radiation over rugged terrains were developed also. the proposed models were proved to be able to treat volumes of data and are applicable to satellite image processing platforms or geographic information system ( gis )

    起伏地形下太陽輻射分散式模型研究根據太陽光線與實際地形之間的幾何關系，建立了起伏地形下天文輻射、可照時間的分散式估算模式；依據坡地直接輻射和散射輻射機理，分別建立了起伏地形下直接輻射、散射輻射的分散式估算模式；建立的分散式模式計算結果可靠，可進行大數據量處理，適用於遙感圖像處理、地理信息系統等數據處理平臺。
  5. Additional noise contributions are due to the statistical fluctuations of the processes in the valves and transistors.

    其他噪聲的產生來自電子管和晶體管中電過程的統計起伏。
  6. Inversion of the near surface structure can be done by the method with refraction first - break information, so it can be used to solve 2d long wavelength and short wavelength statics problems for complex near surface areas ; 4 ) a kind of 3d statics method with statistical deposition of refraction first - break traveling time in common shot domain is developed

    它適應折射面起伏不大、折射層較穩定的近地表條件，利用該方法可以解決二維沙漠、黃土塬覆蓋區等復雜地表條件的長短波長靜校正問題； （ 4 ）三維共炮域折射旅行時統計分解靜校正方法。
  7. Since the suggested method makes a significant improvement in wind speed, it is more suitable for wind field estimation over complex terrain than other methods which only concerns the effect of distance. then we calculate the wind change with evaluation, last we can conclude the wind abase the hilly terrain, we find the wind in westward and center plain is much smaller than other area. while the wind in northward hilly area is much bigger with the hilly arising. the wind of chongqing is the biggest period in spring ( april ), the smallest period in winter ( january ), the wind in summer ( july ) is bigger than its in autumn ( october )

    本文利用重慶及其周邊地區的常規氣象站的1951 ? 1980年30年的風速平均資料，針對復雜地形風速診斷，以地理信息系統為數據處理平臺，根據重慶1 ： 25萬dem數據，來獲得重慶市實際復雜地形的高程，提出了一種適合於起伏地形的權重內插方法，通過引入一個表示地形起伏變化程度的因子，構造了一種新的權重函數，來處理復雜地形上的風速，通過與只考慮距因素同反平內插方法比較發現，本方法更適合在起伏地形條件下使用；然後根據經驗公式在地形上進行計算，得出重慶地區起伏地形下的風速分佈；得出重慶市的西部、中部平原地帶風速較小，而北部山區隨海拔高度升高風速也較大；重慶市風速最大時期為四月份，冬季一月份最小，夏季（七月份）大於秋季（十月份） 。
  8. A new finite - difference method is developed for seismic modeling and reverse - time migration based upon the voronoi cell construction on irregular grids. curved velocity boundaries and irregular earth surface can be accurately represented using the irregular grid implementation. therefore the modeled and migrated results can be more accurate, and meanwhile, the efficiency is still preserved using an explicit finite - difference scheme

    本文的方法可以實現任意非規則網格上的顯式差分計算，因此該方法在保持了傳統的矩形網格差分演算法簡單、高效特點的同時，又能精確地描述彎曲界面和起伏地表，提高了有限差分地震模擬和偏移結果的精度。
  9. The text compares experiment data with the selected theory direction fig and modifies the equal value and standard difference of each segment i n the se i ected wave w i dth d i r ect i on f i g by us i ng the re i at i ve i y between the statistical equal value and standard difference, then makes use of the controls the correlation time to real ize the signal undulate

    通過實驗數據與選定的理論方向圖的對比分析，利用統計出的均值和標準差的相對量，對給定波束寬度的方向圖每段的均值和標準差進行修正。然後利用相關特性，通過控制相關時間，以達到能夠控制信號起伏的目的。
  10. The structure and character of deformable mirror were analyzed, and the conflict between the deformation band and the pitch of deformable cells was pointed out. the " two - time compensation " wave - front correct mode was introduced to settle that conflict. the method for allocating wave - front aberration and designing static corrector was found, and the " two - time compensation " wave - front correct mode was validated by simulation

    分析了變形鏡的結構特點，初步給出了變形鏡本身驅動單元數與校正量之間的制約關系；引入「二次補償」波前校正方案，解決了變形鏡校正量有限與高功率固體激光系統波前誤差起伏量大的矛盾，建立了波前校正對象優化分配、靜態校正器優化設計等細節過程所需要的方法，通過模擬模擬驗證了「二次補償」波前校正方案對于降低變形鏡校正量要求和放寬光學元件加工精度的作用； 5
  11. This text analyses experiment data and emulate undulate mode ! of the signal based on statistical character from the point of matrix and relativity

    本文通過對實驗數據的分析，基於實驗數據的統計特徵量，從矩和相關性這兩種統計量來模擬信號的起伏模型。
  12. It has been demonstrated that the behavior of erraticity is dominated by statistical fluctuations when the multiplicity is low

    已經有人證實：當事件多重數較低時，它的erraticicy的性質完全由粒子數不夠而造成的統計起伏所決定。
  13. That ' s to say, the observed erraticity will deviate from that of pure statistical fluctuations only if the events of the studied sample are coming from some new kind of physical processes

    也就是說，當erraticity偏離純統計起伏時，所研究的樣本中有些事件是來自於某些新的物理過程。
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