approximate value 中文意思是什麼

approximate value 解釋
近似值
  • 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...
  • value : n 1 價值；重要性；益處。2 估價，評價。3 價格，所值；交換力。4 （郵票的）面值。5 等值；值得花的代...
  1. It is not an approximate value.

    它不是一個近似值。
  2. We can approximate the universal capital good as the total dollar value of capital goods

    我們能夠以資本貨物的美圓總值來估計出全部資本貨物。
  3. Here we assume planets move in circular motion at constant speed, and the synodic periods given above is just an approximate value. actually the planetary motion is full of small variants, and the synodic period values are irrational number. the quotient of two irrational numbers cannot be written as a fraction

    最新的消息是，在2000年10月後的六星期內，竟然一口氣為土星多發現10顆衛星，讓它在剎那間重新超越天王星，成為最星多勢眾的行星，現在土星有28顆衛星，遙遙領先只有21顆衛星的天王星，木星的衛星數目為18顆，而第四位的海王星則只有8顆。
  4. For design calculations, it is usually adequate to use the theoretical value for the approximate mixture ratio, corrected by a typical combustion efficiency factor.

    對于設計計算，採用相應混合比的理論值，並用典型的燃燒效率系數來修正，通常這樣做是恰當的。
  5. In section 2. 2, by a priori estimates and fourier spectral method, we prove the existence and uniqueness of the global smooth solution for the periodic initial value problem and obtain the large time error estimate between spectral approximate solution and the exact solution. in sections 2. 3 and 2. 4, by a priori estimates and galerkin method, we prove the existence of the global smooth solution and global attrac - tors for the initial - boundary value problem. chapter 3, consider the initial - boundary value problem of the multidimen - sional non - homogeneous gbbm equations

    第二章，考慮一類一維非齊次bbm方程，在第二節中利用fourier譜方法和先驗估計證明了具有周期初值問題的整體光滑解的存在性和唯一性，給出了fourier譜近似解和精確解的長時間誤差估計；在第三、四節中討論了初邊值問題，利用與時間t無關的一致先驗估計，證明了整體光滑解和整體吸引子的存在性。
  6. From the study results it is showed that turret hole position near the forward of the midship has less effect to the ship girder strength and it is more reasonable using probabilty statistics method to estimate the extreme value of wave bending moment, by which the first approximate value of hull midship section modulus can be determined

    研究結果表明：轉塔開孔位置在舯前附近對船體總強度影響不大；波浪彎矩極值用概率統計方法估算更為合理；船體結構剖面模數的第一近似值可用波浪彎矩設計極值等來確定。
  7. It is well known that the wavelet liner approximation ( i. e, truncating the high frequencies ) can be approximate smooth singals very efficiently. however, for example, piecewise continous signals with large jump in signal value or in its derivatives, standard wavelet linear approximation techniques cannot achieve similar results for signals which are not smooth. to overcome these problems within the standard wavelet transform framework, the paper proposed the double adaptive wavelet transforms

    眾所周知，小波的線性近似（只用低頻系數而不採用高頻系數進行重構的方法稱為線性近似）能非常有效的近似初始的光滑信號。然而對于非光滑信號，例如具有跳變點的分段連續信號，標準小波的線性近似就不能獲得如光滑函數那樣好的結果。
  8. By constructing approximate functions and using prior estimate and conversion of variable, it is proved that the inverse problem has weak solution for given initial value, boundary value and the oil output

    通過變量和函數變換，作逼近函數和估計等方法，證明了對給定的初邊值和石油產量，此反問題存在弱解。
  9. 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。
  10. 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。
  11. After the analysis of the state of converter switches, the voltage space vector is received. on the basis of hexagon stator flux trace method of traditional direct torque control, by changing the regulation of stator flux, hexagon and approximate round trace of stator flux can be got when using different voltage space vector. the fast regulation is realized when three - value regulator is used to adjust torque

    通過對逆變器開關狀態的分析進而得到電壓空間矢量，並且論述了電壓空間矢量與轉矩和磁鏈之間的關系，使用兩點式調節方法對定子磁鏈進行調節，實現六邊形磁鏈軌跡和圓形軌跡方案，對轉矩採用三值調節器進行調節，以實現轉矩的快速調節。
  12. A branch and bound algorithm for solving a class of nonlinear 0 - 1 knapsack problems is proposed, in which branching is common 0 - 1 variables one and a better feasible solution is found by a simply integer heuristic method as well as a lower bound of the optimal value of the subproblem in the each branching node is determined by solving linear programming relaxed approximate problem to be obtained with linear relaxed technique

    摘要構造出了一類可分離非線性0 - 1背包問題的分枝定界演算法，分枝的過程是普通的0 - 1變量分枝，用簡單的取整啟發式法確定更好的可行解；而在每個分枝結點處用線性鬆弛技術確定了它的子問題的一個線性規劃鬆弛逼近，由此得到最優值的一個下界。
  13. Numerical examples are given to illustrate that the norm errors of the approximate algorithm is generally small, while the smaller the absolute value is, the greater the component errors will be

    數值算例表明：該近似演算法的范數誤差一般較小，而絕對量較小的分量誤差較大。
  14. The interaction of wave with multiple porous circular cylinders is analyzed also. the approximate value of the hydrodynamic force act on each porous cylinder can be calculated

    在此基礎上進而分析了波浪對可滲透圓柱群的相互作用，推導出了作用於直線排列的群柱中單一柱體上的波浪力的近似解。
  15. Now we shall list our contribution to the transportation problem : ( 1 ) expected value goal programming, chance - constrained goal programming model and dependent - chanced goal programming model of random transportation are constructed ; ( 2 ) expected value goal programming, chance - constrained goal programming model and dependent - chanced goal programming model of fuzzy transportation are constructed ; ( 3 ) expected value goal programming, chance constrained goal programming model and dependent - chance goal programming model of rough transportation problem are constructed ; ( 4 ) enlightened by liu ’ s thought that solve the uncertain programming with hybrid intelligent algorithm, we design a hybrid intelligent algorithm, that is, genetic algorithms based on simulation to achieve the approximate best solution of the nine above mentioned models

    得到如下主要結果: （ 1 ）建立了隨機運輸問題目標規劃的期望值模型、機會約束規劃模型、相關機會規劃模型; （ 2 ）建立了模糊運輸問題目標規劃的期望值模型、機會約束規劃模型、相關機會規劃模型; （ 3 ）建立了粗糙運輸問題目標規劃的期望值模型、機會約束規劃模型、相關機會規劃模型; （ 4 ）受liu等人提出的用混合智能演算法求解不確定規劃的思想的啟發，結合運輸模型的特殊結構，設計了一種基於模擬的、求解不確定性運輸問題的遺傳演算法。
  16. Goods to be forwarded in two approximate value shipment

    貨須分兩批裝運，每批所裝貨物的價值大致相等。
  17. Abstract : a computational formula of approximate value of minimum point and minimum value for some particular functions was infered by interpolation method of equidistant points

    文摘:利用等距節點的插值的方法，推導出某些特殊函數的最小點及最小值的近似值的計算公式
  18. An approximate value for the lowest reasonable

    對于合理的最低
  19. The escalation threshold should only be considered as an approximate value, because any locks required by internal operations count toward that threshold

    升級閾值應僅視為估計值，這是因為內部操作所請求的鎖都已計入閾值統計中。
  20. At last, a classical parallel programme of computing the approximate value of n was run with different number of nodes and different scale of question on the self - established linux cluster system, and the process status and the performance results were monitored by the ppdbm at the same time

    最後，在自行搭建的機群系統上，用ppdbm系統對近似值經典并行演算法按不同節點數及不同問題規模進行了測試，對并行程序進程行為進行了實際監測和性能分析。
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