mathematical constant 中文意思是什麼

mathematical constant 解釋
數學常數
  • mathematical : adj 數學（上）的，數理的；嚴正的，精確的。 mathematical instruments 制圖儀器。 mathematical logic...
  • constant : adj 1 恆定不變的，固定的，穩定的，恆久的；繼續不斷的。2 不屈不撓的，堅韌的。3 忠實的，有節操的。n...
  1. In chapter 4, the principle drawing of the system is presented after adding a constant - pressure - drop valve. the operating principal of the valve is briefly introduced. the static mathematical model is built up and study is carried out by means of simulation under the circumstance of matlab, then the static working point is obtained

    對定差減壓閥作了簡要的介紹，根據系統工作原理圖建立靜態數學模型進行模擬研究，由模擬結果分析系統靜態工作特性，得到靜態工作點；然後，建立系統動態模型，對其動態特性進行非線性模擬研究，並就環境因素變化對系統工作特性的影響作了詳細分析。
  2. In this master dissertation, under the fundamental frame of general relativity, we study the tachyon inflation, d - stars in the spacetime with a nonzero cosmological constant and it ' s observable effects by using some modern mathematical methods such as differential equation and qualitative analysis

    本文以廣義相對論作為基本理論框架，使用微分方程及其定性理論，研究了宇宙演化和結構中的兩個問題，其中包括了快子暴漲，非零宇宙常數時空中的d星以及它的種種可觀測效應。
  3. The cosmological constant is a mathematical representation of the energy of empty space, also known as " dark energy ", which exerts a kind of anti - gravity force pushing galaxies apart at an accelerating rate

    宇宙常數是空虛空間能量的數學描述，一般稱為黑暗能量，這種反引力促使星系彼此加速遠離。
  4. Transformed the six - bar guide - bar mechanism realizing linear displacement in automatic instruments into a basic rotating guide - bar mechanism, established the mathematical model of velocity approaching constant by the classical approximate synthesis theory and the modern error theory, discussedthe influences of the existent region of main mechanismic parameters on kinematic and dynamic properties, analysed the theoretical transmission ratio error, advances systematic, complete steps and methods for dimensional synthesis of this mechanism with computer aided design

    將自動化儀表中實現線性輸出的六桿導桿機構轉化為基礎轉動導桿機構，應用經典的機構近似綜合理論與現代的誤差理論，建立了速度逼近常數的數學模型，討論了主要機構參數存在區域及對運動、動力性能的影響，分析了傳動比理論誤差，提出了系統完整的計算機輔助尺度綜合的步驟與方法。
  5. By using the p + pr algorithm and the technique of synchronous gate operation, a mathematical model of multireach canal systems in the mode of constant water - volume control was developed ; and it was programmed to simulate the control process

    摘要應用閘門同步操作技術和p + pr演算法，建立了多渠段串聯渠系並有渠側出流的等體積控制模型，並編程對控制過程進行實時模擬。
  6. Research on mathematical model and self - oscillatory paramters of the non - linear hydraulic system with constant pressure souce

    帶恆壓慣性源的非線性液壓系統的數學模型和自持振蕩參數的研究
  7. Firstly, for the intelligent structure ' s active bars, a constant output velocity feedback control law is dissipation energy due to control action and the optimal mathematical model with the reliability constraints on dynamic stress and displacement was built

    以直接輸出速度反饋作為閉環控制律，基於最大耗散能準則，建立了以主動桿配置位置和控制系統增益為設計變量，具有動力響應（應力響應和位移響應）可靠性約束的壓電智能桁架結構主動桿優化配置的數學模型。
  8. In a water - supply system with constant press, press of punch has features that it is complicated, difficult to set up a precise mathematical model and with pure lag. so it is proper to control press with non - model control method based on man ' s experience

    恆壓供水系統中，水泵出口壓力也具有機理復雜、難以建立精確的數學模型、有純滯后等特點，比較適合於採用基於人工經驗的非模型控制方法。
  9. Represents a mathematical constant having a history going back 4, 000 years, the earliest written record being from the egyptian

    這個數學常數已有四千年歷史，而早於公元前約1650年，
  10. In chapter 3, according to the requirements of high voltage power supply used for charging capacitors with constant current, the series resonant converter ( src ) was chosen as the main circuit frame. the dynamic process of src was discussed by using mathematical analyses and numeric simulation to study the operational characteristics, the effects of parameters of resonant circuit on them and the relationship between switching frequency and out put power, which provided the bases of designing the power supply

    第三章中根據高壓電容恆流充電電源的運行特點，選擇了串聯負載諧振變換器作為主電路結構形式，並對其動態過程進行了數學分析及數值模擬，討論了該電路的運行特點、諧振迴路參數對運行特性的影響以及開關工作頻率與功率輸出的關系，為電源的設計提供了依據。
  11. On the basis of deep research of its working principal, basic algorithm and error spread character, the gyro constant drift, acceleration zero error and constant initiation error of static pedestal strapdown inertial navigation system are quantitatively analyzed. furthermore with the medium precision inertial navigation device as the simulation object, we made some mathematical simulation

    詳細研究了捷聯式慣性導航系統的工作原理、基本演算法和誤差傳播特性；對靜基座條件下捷聯慣導系統中陀螺常值漂移、加速度計常值零位誤差和常值初始條件誤差引起的系統誤差進行了定量分析；以中等精度的慣性器件構成捷聯慣導系統作為模擬對象，進行了數字模擬。
  12. The research on the characteristic of tobacco consumption in guizhou province will be helpful to implement the above developing strategy, the development of economic with constant, health, coordinated and promote the research on regional hobby become mathematical quantification, systematized in our country

    因此，對貴州省卷煙消費特徵的深入研究，將有助於貴州省煙草行業上述發展戰略的實施，有助於貴州省地方經濟的持續、健康、協調發展，同時，可促進我國嗜好品區域消費理論研究的進一步數量化和系統化。
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