粗近似 的英文怎麼說

中文拼音 [cūjìnsì]
粗近似 英文
rough approximation
  • 粗 : Ⅰ形容詞1 （長條東西直徑大的） wide （in diameter）; thick 2 （長條東西兩長邊的距離寬的） wide （i...
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 近似 : approximate; similar; approach; approximation; roughness; propinquity
  1. General appetence : heavy squarish built with not too long legs, almost short compared to the body, heavy boned short thick neck with thick mane like coat

    [通常外觀:非常強壯的近似於方型的體格;非長腿， （長度）與身體大致匹配;骨量大，短而粗壯的脖頸，上面被有濃密的鬃毛
  2. Such estimates should be considered only as crude approximations.

    上述估算結果只能是粗略的近似值。
  3. Isolated points and algebraic structure of rough equality classes in approximate space

    近似空間中的孤點與粗相等類的代數結構
  4. A real rough set space and the concepts of real lower and upper approximation corresponding to real - valued attributes is studied. a rhombus neighborhood for som is proposed, and the combination of som and rough sets theory is explored in the dissertation. according to the distance between the weight of winner node and the input vector in the real rough sets space, some new weights learning rules are defined

    本文提出採用菱形鄰域代替一般的方形鄰域，可以減少待修正權重的數目;並利用實數粗糙空間的下、上近似集的精確概念劃分自組織映射的輸出結果，使得改進后的映射結果中各類樣本點之間有明顯的間隔，易於進行分類識別。
  5. Taking this as a base, a concept of believability has been introduced, and the expression method of criterion of fuzzy critical hole expansion ratio under the upper and lower approximation set of rough set theory was advanced

    在此基礎上，引進可信度的概念，提出模糊臨界空穴擴張比判據在粗糙集理論的上、下近似集下的表示方法。
  6. As a rough approximation of the rate of income growth per capita, one can subtract the rate of increase in population from the rate of growth in total income.

    人們可從總收入增長率中減去人口增長率，得出人均收入增長率的一個粗略近似值。
  7. Then based on kirchhoff approximation theory, the formula of the coherent and incoherent scattering intensity of plane wave from two dimensional dielectric normally distributed rough surface are derived, and the scattering intensity of a planar, rough surface of unit area

    然後從粗糙面散射kirchhoff標量近似理論出發，得到了平面波對高斯分佈的二維隨機粗糙面的相干散射和非相干散射強度表達式，並給出了單位面積粗糙面非相干散射的表達式。
  8. Thermal contact resistance is calculated by fem. the triangular model is considered more precise when its control angle equals 30 and an approximate formula is provided for calculation of the thermal contact resistance by comparing computation models

    本文採用有限單元法數值計算接觸熱阻，提出控制角為30的三角形模型具有較高的精度，給出接觸熱阻的近似計算公式，並分析了表面粗糙度對接觸熱阻的影響。
  9. However, the die attach layer delaminated after 500 cycles and pcb cracked in the underfilled samples after long time cycling. c - sam is employed to investigate the delamination in the underfilled samples. highly concentrated stress - strain induced by the cte mismatch between the bga component and the pcb board, coarsened grain and two kinds of intermetallic compounds ( nisn / nisns ) which formed during reflow and thermal cycle and their impact on the reliability of solder joints are discussed in this paper

    充膠樣品粗化尤為嚴重； ? ni - sn金屬間化合物包括兩層：其中，靠近ni焊盤的那層比較平整，同時， eds結果分析表明其化學式近似為nisn ，而靠近焊料的那層呈板條狀，化學式近似為nisn _ 3 ，文獻表明其為亞穩相； ?充膠使得樣品最大應力范圍降了接近一個數量級並降低了dnp的作用，同時，器件失效模式變為晶元粘接層分層； ? c - sam結果表明本論文採用的充膠樣品，晶元粘接層分層起始於500周左右，而經過2700周循環的樣品，分層幾乎擴展到整個界面。
  10. While putting rough set theory into practice, this thesis pays attention to setting - up the proper data structure. in order to improve the data utilization ratio and promote rule quality, this thesis puts forward the method of " divide equally and examine each other this thesis bring forward the method of dynamic reduce to overcome data noise and confirm the best reduction finally with the help of rosetta tool software we apply the above concept and method to reality, and succeeded in obtaining the optimum rule for the expert system of production scheduling in daye iron ore mine, wuhan iron and steel company

    由於標準粗糙集模型對數據噪音高度敏感以及工程應用中數據噪音引入的不可避免性，標準粗糙集模型在實際應用中存在一系列問題，為克服數據噪音以及規則泛化的需要，本文採用變精度模型，由此模型引入近似約簡方法。本文在將粗糙集理論及變精度粗糙集模型應用於實際的同時，注重研究了適當數據結構的建立。為提高數據利用率，提升規則生成的質量，提出了平分互測規則集泛化能力考核方法。
  11. The correlation may be used with reasonable confidence for all gas-liquid systems and as a rough approximation for liquid-liquid systems.

    這個相關規律用於所有的氣-液相體系是可信賴的，但對液-液相體系來說只能算是粗略的近似。
  12. After probable damage location through msecr, the method based on the sensitivity of orthogonality conditions gives good predictions of damage. this method overcomes the natural defect of the concept first order approximation of the ordinary sensitivity analysis method. but this method needs complete measured modes

    為克服靈敏度分析法一階近似的本質缺陷，基於正交條件靈敏度分析法，利用msecr對結構的損傷進行粗略定位后，給出了準確的識別結果，但這種方法的缺點是需要完備的實測振型。
  13. Approach, brute - force

    粗略近似法
  14. Since human dimensions vary, any measurement so taken would be only a rough approximation and not to be trusted where precision was required

    由於各人的身材大小不等，這種度量方法只能是一種粗略的近似值，凡是需要精確計量的場合，這種方法就不可信了。
  15. Suggest the method of division to measure the largest compacted dry density of dam ' s material with super large diameter approximately. according to the research of predecessor, suggest applying the effective void ratio or the effective void rate to compute the coefficient of permeability approximately

    採用了表面振動法進行室內最大幹密度的研究，提出了比例法近似測定超徑粗粒土最大幹密度；在前人研究的基礎上，提出採用有效孔隙率或有效孔隙比的滲透系數近似估算。
  16. The foundation soil is usually considered to be rigid in the current seismic analysis theory of structures. the rough approximate analysis is usually done to the soft foundation soil

    現有的抗震計算理論大多採用剛性地基的假定，對于實際存在的柔性地基介質的影響，在分析中通常給予粗糙的近似處理。
  17. Properties and relativity of logical operator sets and their corresponding fuzzy rough approximation operator sets

    邏輯運算元集與模糊粗糙近似運算元集的性質及相關性
  18. ( 5 ) the article also investigate the recrystallization condition of crude lactide and point out that it also an important factor have influence on the purification production ratio. ( 6 ) give the kinetics equation of depolymerization reaction. by determination the degree of polymerization ( dp ) of the reaction system, we can get the kinetics data of the reaction

    本文建議使用乙酸乙酯和異丙醇混合溶劑（ 6 ： 4 ）對丙交酯粗產物進行重結晶； （ 6 ）提出解聚反應的動力學方程，認為它是一個可近似處理為一級反應的連續反應，並可通過測定體系的平均聚合度的方法來得到包括活化能在內的反應動力學數據。
  19. The exact express of the intersection and union of the fuzzy sets defined by the rough membership function is given. two extension model of rst are introduced and their characters are discussed. we also discover the changes of the upper ( lower ) approximation after the attributes were added to or removed from the original attribution set

    首先得到了由粗糙隸屬函數所定義模糊集的交與並的確切表達，改進了以往文獻的結果；其次，提出了兩種粗糙集的擴展模型，並對這兩種模型的性質進行了討論；最後，得出了屬性集增加或刪除屬性後集合的上下近似的變化關系。
  20. When we describe the fuzzy concept of approximate space in rough set theory, the fuzzy rough set was generated correspondingly

    所以作為粗集描述近似空間中的知識是模糊概念時，我們就有模糊粗集的理論產生。
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