approximate to 中文意思是什麼

approximate to 解釋
近擬,接近
  • approximate : vt 1 使接近。2 接近；走近。3 近似，約計。4 模擬。5 估計。vi 近於。 His income this year approxima...
  • to : adv 到某種狀態；〈特指〉到停止狀態；關閉。 ★也常和動詞結合，略去其後賓語，而構成成語： The door i...
  1. The most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. )

    近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深人到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞。
  2. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體，主要分佈在兩個區域；火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深入到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難，包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法（包括辛演算法）計算效果的比較，根據小天體運動自身的特性，給出了相應處理措施，從而可提高計算結果的可靠性
  3. The mechanism of anti - wear and friction reduction of nanometer cacoa has been discussed and individual opinions of the nanometer particles " existing way and effects have been proposed. 1 ) the shape of the nanometer cacos particle is approximate to that of sphericity. its function is similar to that of the miniature " ball bearing "

    6 、探討了納米碳酸鈣粒子的抗磨減摩機理，對于納米粒子在潤滑油中的存在方式和作用提出了個人見解： （ 1 ）納米碳酸鈣粒子近似為球形，它們起了類似微型「球軸承」的作用，從而提高了摩擦副表面的潤滑性能。
  4. ( 3 ) there is a relation approximate to exponential function between particle size and jumpiness of light scattering energy

    （ 3 ）經初步擬合，粒徑和散射光能量跳動量之間有指數函數的關系。
  5. The dissertation deals in details with the basic principle of direct torque control. according to the faults of traditional direct torque control and the requirement of an induction motor ' s control strategy change the method of regulating stator flux to make its path approximate to a circle as possible as could. to get quickly torque control, use a three - value regulator

    本論文介紹了電動機直接轉矩控制的基本原理，並根據傳統直接轉矩控制存在的缺點以及對電動機調速性能的要求，改變對定子磁鏈的調節方式，使定子磁鏈軌跡近似為一圓形，對轉矩採用三值調節器進行調節，以實現轉矩的快速調節。
  6. According to the faults of traditional direct torque control and the requirement of an induction motor ' s control strategy, the author changes the method of regulating stator flux to make its path approximate to a circle as possible as could and put forward a new way to use a three - value torque regulator

    本論文研究了異步電動機的數學模型，介紹了直接轉矩控制的基本原理，並根據傳統直接轉矩控制存在的缺點以及對電動機調速性能的要求，改變對定子磁鏈的調節方式，使定子磁鏈軌跡近似為一圓形。
  7. Hence designers can adjust the shape of curves by changing not only control points but also shape factor. our experiments show that h - bezier model approximate to the control polygon more closely than bezier model. so they are suitable to shape design and modeling in cad systems

    而且h - b zier曲線還引入了一個稱為形狀因子的參數，形狀設計者不僅可以像b zier曲線一樣通過調節控制多邊形來控制曲線形狀，而且還可以調節形狀因子來調整曲線對控制多邊形的逼近程度
  8. Test results indicate : formula in american code is very conservative and with low reliability ; formula in bridge code, westergaard formula and sanko - bakht formula can be only used in narrow range ; the result of space numeric simulation is approximate to test one, and with high accuracy

    試驗結果表明：美國規范公式計算結果過于保守、可接受程度低；橋規公式、魏斯特加公式以及沙柯公式計算結果單一、適用范圍偏窄；空間數值模擬分析的結果與試驗結果比較接近，準確度高。
  9. The impact behaviors of pp / eoc and pp / caco3 were compared. the toughening mechanisms of pp / eoc and pp / caco3 systems are firstly proved to agree well with wu ' s percolation theory. the essential condition occurring brittle - tough transition in two binary systems is that the matrix ligament thickness ( l ) is lower than the critical matrix ligament thickness ( lc ) which is approximate to 0. 095 ? m

    比較ppffioc和ppcacos二體系的增韌行為，發現加入eoc和cacos都能增韌pp ，首次驗證了新型彈性體eoc和無機剛性粒子cacos增韌pp的機理符合wu氏逾滲理論，二體系發生脆韌轉變的基本條件是基體帶厚度l小於臨界基體帶厚度人（ 。
  10. The incident high - energy protons interact with the silicon material in the way that is approximate to the three unrelated mechanisms : nuclear scattering, electronic process and nuclear reaction

    高能質子與硅材料的相互作用近似為核散射、電子阻止和核反應三個相互獨立的過程。
  11. In this work, we have made an approximate to the one - electronics radial function, namely only the leading term of slater - type orbital ( sto ), which is the same as the modified hydrogen - like wave function, are taken into consideration

    在這一工作中，我們對單電子徑向函數作了近似處理，即只取斯萊特型單電子徑向波函數（ sto ）的領頭項，其形式與類氫離子的徑向函數相似。
  12. A static and a transient analysis of an embedded crack in a long elastic strip are carried out. the results are approximate to the ones that existed. and the effects of the factors including the crack configuration, the crack depth, the strip length and the strip thickness on the transient response are discussed

    對含內埋橢圓裂紋的板條進行了靜態和瞬態分析，得到的結果與已有的解吻合良好，對影響瞬態響應的因素如裂紋形狀、裂紋深度、板條長度、板條厚度做了分析比較。
  13. The concentration field calculated by the 3d numerical model approximate to that calculated by the partial depth homogeneous mixing 2d numerical model

    用該模型對定點排放濃度場進行模擬計算，並與前述部分水深平均二維模型的計算值進行比較分析。
  14. The income and expense items in the profit statements shall be translated at the spot exchange rate of the transaction date, or at a spot exchange rate which is determined through a systematic and reasonable method and is approximate to the spot exchange rate of the transaction date

    （二）利潤表中的收入和費用項目，採用交易發生日的即期匯率折算；也可以採用按照系統合理的方法確定的、與交易發生日即期匯率近似的匯率折算。
  15. Abstract : according to the load of tripping, driving system of dri ll should have rigid output performance and regulating performance approximate to constant power

    文摘:根據升降鉆具的負載特點，動力驅動系統必須具備的2個基本特性是硬的機械特性和近似恆功率的調速特性。
  16. The thesis talks about the influence of buddhist scriptures upon tao yuan - ming ' s poetry after having reviewed almost all data concerned : that eight " hua " characters possess noumenal signification derived from buddhist scriptures the odd style of stop drinking, which has twenty sentences with a " zhi " character respectively, was influenced by the characteristic that there is the same word or expression in each sentence in a very long section in buddhist scriptures ; the idea where you live is remote as long as you feel faraway is relative with the idea of sukhavati in buddhist scriptures ; how the language in tao ' s poetry that is fairly approximate to speaking was formed is related to buddhist chants, and also is how so much discussion in tao ' s poetry was formed

    摘要在通檢所有有關材料的基礎上揭示陶淵明詩受佛經影響的五條表現：陶詩中8個「化」字之具有本體的意義來自佛經； 《止酒》詩每句都有一「止」字的奇特體制有取于佛經一長段行文中每句包含一相同詞語的行文特色； 「心遠地自偏」與佛經的凈土思想有關；陶詩「比較接近說話的語言」特色的形成、較多議論的存在與佛偈有關。
  17. This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton

    當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。
  18. When the diameter of the particles satisfied some conditions, mie theory is approximate to fraunhofer diffraction theory

    當顆粒粒徑滿足一定條件時，米氏光散射可以用夫瑯和費衍射來近似。
  19. Furthermore, when the divided ii1 differences are used to approximate to the derivatives that are coefficients in linear arithmetic representations, computing linear arithmetic representations is converted to compute predicate residuals completely, which needs to analyze neither static nor dynamic data dependencies between the statements on w. at this time, the improved method is more powerful to generate test data, and can be used for black - box testing

    更進一步，當用均差作為謂詞函數關于輸入變量的導數的近似時，計算線性算術表示就全部轉化為計算謂詞殘量，而後者無須分析w上各語句之間的靜態、動態數據依賴關系。此時，改進后的方法比原方法生成測試數據的能力更強，能夠用於黑盒測試數據的自動生成。
  20. This method use cmac neuralnetwork to approximate to the inverse - kinematics model of humanoid robot, and gets themapping relationship between stance warp and angle adjustment value of every joint. so, theproblems ofrequiringa mass ofcomputationand thesolutionmaybenot unique, whichface thetraditionalanalyticalway, areavoidedwiththismethod

    該方法利用cmac神經網路逼近仿人機器人的逆運動學模型，得到末端位姿偏差到各個關節調節量的映射關系，避免了傳統解析方法面臨的計算量大、解不唯一的問題。
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