physical constant 中文意思是什麼

physical constant 解釋
物理常數
  • physical : adj 1 物質的,有形的,形而下的 (opp psychical spiritual mental moral); 確鑿的;外界的。2 身體的...
  • 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 this paper, we give a brief introduction to the helfrich elastic theory. to solve the helfrich equation under the physical conditions of vesicles, a taylor series method is introduced, which offers a unified method to reproduce the exact solution including the famous axisymmetrical constant - curvature surfaces and the biconcave shape solution

    本文在簡要介紹了helfrich的彈性理論及膜方程的基礎上,開創性地引入taylor級數法,在軸對稱膜的邊界條件下,對helfrich膜方程以taylor級數法求解,統一地得到了目前已知的兩個特解:常平均曲率曲面和紅血球形狀解。
  2. Under the assumption that the inner surface of stator sleeve and outer surface of rotor are smooth, taking the fact into account that the temperature of stator sleeve of evaporation cooling motor keeps almost the same, horizontal evaporation cooling motor is simplified as a physical model of two coaxial sleeves, with outer sleeve ( the stator ) holds still and keep at constant temperature and inner sleeve ( the rotor ) is rotating and heated

    本文通過數值和實驗手段研究了臥式蒸發冷卻電機楔形氣隙中的流體流動、傳熱現象。本文在定子套筒和轉子表面光滑的假設下,針對蒸發冷卻電機定子套筒壁面基本恆溫的特點,將實際蒸發冷卻電機簡化為同軸套筒內筒加熱旋轉、外簡靜止定溫的物理模型。
  3. But, once we accept the reality of the cosmological constant as the dark energy, it would be important to find a physical interpretation for this quantity

    我們當然不甘於單單把黑暗能量等同於宇宙常數,對科學家來說,更重要的是要對黑暗能量的來源找一個合理的物理解釋。
  4. Rehabilitation medicine is a constant developed medicine discipline, which is closely correlative with physical medicine

    康復醫學是一門在不斷發展的醫學學科,與理療學、物理醫學密切相關。
  5. The fine - structure constant is an important zero dimension constant in the atomic physics. this article introduces the origin of fine - structure constant, and discusses its physical significance, and theoretical calculation

    摘要本文介紹原子物理學中重要的無量綱常數之一的精細結構常數的由來,討論它的物理意義和理論計算。
  6. The charging of lead - acid battery, the most widely accepted secondary battery, constrained to technological limitation, mainly adopted traditional charging methods such as constant voltage, constant voltage with current limitation, constant current and etc. those methods may not follow the internal physical and chemical laws within the battery, leading to serious overcharge and gas - generation, and resulting in low - efficiency, time - consumming and prone - to - damage of the charging operation

    二次電池中被最廣泛接受的鉛酸蓄電池由於技術條件的限制,其充電主要採用恆壓、恆壓限流、恆流等常規模式,這些充電方法未能遵從電池內部的物理化學規律,大多存在著嚴重的過充電和析氣等現象,並導致充電過程的低效,耗時和易損。
  7. Cuhk achieves new surgical management of emphysema emphysema is a common debilitating condition among chronic smokers and characterized by a constant sense of breathlessness, limiting their physical activity

    肺氣腫是一種常見的慢性疾病,患者主要為長期吸煙者,患者有持續性的呼吸困難,其活動能力因而大大受到限制。
  8. The result of long - term operation shows that the computer control system is practical and effective, it can run in the optimal state within a long duration to fully realize data collection and process, remote data transmission and vfvs constant injection control of pumps. it speeds up the automatic procedures of the seawater treatment process, really realizes the unmanned working, decreases the physical intensity to a large extent, improves the management, enhances the management level, avoids equipment wear down as much as possible, makes the seawater treatment efficient and lessens the cost of production

    長期的運行結果表明,該計算機控制系統的實施切實有效,既成功實現了對被檢測參數的數據採集與處理、遠傳以及注水泵機組的變頻調速恆壓注水控制,又提高了系統的自動化程序,真正實現了無人值班作業,在很大程度上降低了工作人員的勞動強度,極大的改善了現場的管理狀況,提高了生產管理水平,且有效避免了設備損耗,提高了水處理效率,降低了生產成本。
  9. When stress is ongoing - - such as the stress caused by money problems, bad relationships, or an overburdensome job - - this constant physical reaction can significantly raise your risk of colds, diabetes, heart disease, back troubles, and almost every other major health concern

    人在處于壓力中- -例如:由於金錢問題、不好關系或工作負擔太大- -不斷出現的身體反應會極大地提高感冒、糖尿病、心臟疾病、背部問題及每種主要健康問題產生的風險。
  10. We studied many methods to improve the tcp / ip in wireless environment, such as tcp / ip initial slow start algorithm, initial window and retransmission time out ( rto ) estimate. finally, we consider the round - trip time ( rtt ) with the physical layer and the transfer layer combined together. physical layer using rtt related to the channel state and transfer layer using the constant rtt, the interference between the two layers can be eliminated, and so the effectiveness of the wireless data link can be enhanced

    研究了tcp ip的慢速啟動演算法、初始窗口、重傳超時估計以及改善無線tcp ip性能的各種方法,提出了一種把物理層鏈路和傳輸層相結合處理往返時間( rtt )的方法:物理層鏈路採用與通道相關的動態rtt ,傳輸層採用常數rtt ,消除了兩層rtt之間的相互干擾,從而提高了無線鏈路的利用率。
  11. Secondly, in this part, we will introduce the notation of average geodesic curvature for curves in the hyperbolic plane, and investigate the relationship between the embeddedness of the curve and its average geodesic curvature. finally, we will employ the minkowski ' s support function to construct a new kind of non - circular smooth constant breadth curves in order to attack some open problems on the constant width curves ( for example, whether there is a non - circular polynomial curve of constant width, etc. ) in the second part, we will first follow the ideas of gage - hamilton [ 28 ], gage [ 26 ] and the author ' s dissertation [ 47 ] to present a perimeter - preserving closed convex curve flow in the plane, which is from physical phenomena

    其次,對雙曲平面上的曲線引入平均測地曲率的概念,並討論雙曲平面上凸曲線的嵌入性與它的平均測地曲率之間的關系,其目的是為了將雙曲平面上曲線的性質與歐氏平面中曲線的性質作一些對比;最後,我們利用minkowski支撐函數構造了一類新的非圓的光滑常寬曲線,其目的是想回答有關常寬曲線的一些未解決問題(如是否存在非圓的多項式常寬曲線
  12. And the effect of the work order of the two propellant units to the performance of the trajectory and the matching conditions to obtain the theoretical optimum trajectory is discussed too. according to the ballistic speciality of a hybrid base - bleed - rocket extended - range projectile during base - bleed and rocket work, its physical parameter is non - constant, such as its mass position of mass centre polar and equatorial moment of inertia. after a mulriple ballistic model of constant physical parameter is established, a mulriple ballistic model of continuous and non - continuous physical parameter is educed and the program is compiled, the theoretical tool is constructed to study othe other pivotal technology of a hybrid base - bleed - rocket extended - range projectile

    本文根據底排?火箭復合增程彈其底排燃減阻和火箭助推階段的質量、質心位置、轉動慣量等結構特徵參量變化的彈道特徵,在建立底排?火箭復合增程彈結構特徵參量為不變常量的多元彈道計算模型基礎上,導出了結構特徵參量為連續變化量和非連續變化量的底排?火箭復合增程彈多元彈道計算模型,編制了相應的計算機數值分析程序,構建了研究底排?火箭復合增程彈其它關鍵技術的理論工具。
  13. It needs constant refreshing of physical attributes for the body only exists in the physical world

    它需要經常更新物質的屬性只是為了讓物質身體存在於這世界。
  14. Natural unit, dimensionless transformation, reducing and regaining constant of physical equation

    無量綱變換及常數的壓縮與恢復
  15. For example, you may have recently been stressful at work, and the physical exertion or constant pressure may make you feel exhausted

    疲倦的原因很多,例如你可能最近工作異常忙碌,身心也自然感到疲累。
  16. So this paper bring forward several new concepts and new terms, and give the whole defmations to their physical meanings ; advance the conditions of right gearing mesh and continuous drive ; prove out that a pair of ring involute tooth forms are conjugated and that they can achieve precise spherical motion of constant transmitting ratio employing the space mesh theory

    為此,本文首次提出了球齒輪傳動中若干新概念,新名詞,並對物理含義作了完整的定義;提出了球齒輪機構的正確嚙合條件和連續傳動條件;利用空間嚙合理論,證明了一對漸開線環形齒廓互為共軛齒廓,能實現精確的定傳動比球面運動。
  17. Formulas of the mean velocity profiles of the two regions can be developed on the basis of this physical model, and the expression of the von karman universal, constant is given with an error of less than 15 %

    據此導出了兩個流區的時均流速分佈公式,給出了卡門常數的數學表達式,誤差小於15 。
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