恆值 的英文怎麼說

中文拼音 [héngzhí]
恆值 英文
constant
  • 恆 : Ⅰ形容詞1 （永久; 持久） permanent; lasting 2 （平常; 經常） usual; common; constant Ⅱ名詞1 （恆心...
  1. The compilation of such diagrams, is of lasting value for astronomy.

    繪制這樣的圖對天文學有永恆的價值。
  2. Asymptotic stability of viscous shock profiles for one - dimensional viscous conservation laws with boundary effect

    一維粘性守恆律初邊值問題粘性激波解的漸近穩定性
  3. By the polygonal approximation method, a global approximation solution is constructed for the initial - boundary value problem of nonconvex scalar conservation laws with two - side boundary effect, and its convergence to the global weak entropy solution of the corresponding problem is proved

    摘要使用折線逼近法，對具有兩條邊界影響的非凸單個守恆律初邊值問題構造了整體近似解，並證明其收斂到初邊值問題的整體弱熵解。
  4. A third group of species with diagnostic value are the constant companions.

    具有鑒別價值的第三組植物是恆有伴生種。
  5. This behavior is consistent for all values of k evaluated.

    這種特徵對整個估計的K值是恆定的。
  6. 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。
  7. Having set the halffilled kettle on the now burning coals, why did he return to the stillflowing tap ? to wash his soiled hands with a partially consumed tablet of barrington s lemonflavoured soap, to which paper still adhered bought thirteen hours previously for fourpence and still unpaid for, in fresh cold neverchanging everchanging water and dry them, face and hands, in a long redbordered holland cloth passed over a wooden revolving roller

    為了把那塊已用掉一部分還粘著包裝紙散發著檸檬氣味的巴靈頓32牌肥皂價值四便士，是十二個鐘頭以前賒購的塗在臟手上，在新鮮冰涼永恆不變而又不斷變化的水裡洗凈，用那條套在旋轉式木棍子上的紅邊長麻布揩拭臉和雙手。
  8. In adding - acid system : the resistivities of different lithotypes " cp tend towards being constant and equal when weight percentage of aniline exceeds 50 % ; because of the structure difference of different lithotypes, the polymerizing places and processes are different ; the resistivities of vituain / pan and fusain / pan reach the lowest point respectively when ( ntloisiog / an is 0. 6, 1. 0 ; the resistivities of cp decline fast and tend towards being constant along with the reduction of diameter of coal. in not adding - acid system : the resistivities of different lithotypes ' cp decline evenly ; it is found on the crossed experiment of cp, that ( nflsaog / an mole proportion is the most important factor to influence output ratio of cp and the weight percentage of aniline is the most important factor to influence resistivities of cp. according to the result of the crossed experiment of cp

    在有外加酸體系中：苯胺百分含量大於50時，不同煤巖組分的電阻率趨于恆定和一致；由於不同煤巖組分結構上的差異，導致苯胺聚合場所和聚合過程的不同；當過硫酸銨/苯胺摩爾比為0 . 6 ， 1 . 0時，鏡煤-聚苯胺導電材料電阻率和絲炭-聚苯胺導電材料的電阻率分別達到最低值；在無外加酸體系中：不同煤巖組分/聚苯胺導電材料的電阻率隨著聚合時間的增加而均勻下降，並在8小時左右達到恆定；在對絲炭-聚苯胺導電材料進行的正交試驗中發現：過硫酸銨/苯胺摩爾比對產率的影響最大，苯胺重量百分比對產率影響最小，而對產物電阻率影響最大的是苯胺重量百分比。
  9. A point worth emphasizing is that hydrostatic equilibrium is fulfilled with great accuracy in stellar atmosphere.

    值得強調指出，在恆星大氣中，流體靜力平衡是非常精確地成立的。
  10. Those inflexion are brought by the energy balance and heating mechanism in stellar chromosphere and corona. using large samples, we gain several credible numeric relation between different magnetic activity index and rotational parameters

    我們通過對大樣本恆星的統計分析分別得到了晚型主序星磁活動與恆星自轉參量間以及磁活動與恆星色指數之間更廣泛意義的數值關系。
  11. The inverse kinematics of a space - based manipulator composed of three rigid bodies with prismatic joint are studied in the second chapter, and the jacobean matrix for space manipulator is derived by fully cartesian coordinates. a control method for space manipulator based on the resolved motion rate control concept is proposed

    為此結合系統動量及動量矩守恆關系導出了以完全笛卡爾坐標表示的系統運動jacobi矩陣，並在此基礎上研究了帶滑移鉸空間機械臂的分解運動速度控制方法，給出了計算機數值模擬算例，以此證明了該方法的有效性。
  12. This paper applies kami ' s method to analyze conservative scheme in lagrangian coordinate, and then selects one of upwind schemes which do not show oscillations, finally applies it to construct high resolution scheme. numerical flux of one order scheme is used near interface, while numerical flux of high resolution scheme is adopted in other area

    本文在對lagrange坐標系下的守恆型格式進行詳細分析后，甄選出不震蕩的一階迎風型格式，然後應用於lagrange坐標系下的高解析度格式，在物質交界面處採用不震蕩的一階迎風型格式的數值通量，而在其餘地方採用高解析度格式的數值通量。
  13. Aiming at the problems of the k190jik rail welding machine, that the parameter modification is difficult, the welding process is not enough stability and the welding machine has no on - line diagnosis function, in this paper, the control system of the welding machine was promoted completely adopting the fx2n - 64mr programmable logic controller and the pcl - 1800 data acquisition card, the das ( data acquisition system ) was set up by using labview and visual basic software, the functions of welding voltage stabilizing and adjusting, current controlling and intellectual modification was improved, welding quality diagnosis system was built up, and the assembling and debugging of the control system was completed, including the process experiments

    本文針對k190jik鋼軌焊機控制系統存在參數修改困難、焊接過程不夠穩定、無焊接質量在線診斷功能等問題，採用日本三菱公司fx2n - 64mr可編程序控制器、研華工控pcl ? 1800數據採集卡等為核心控制部件，對焊機的整機控制系統進行了全面升級。運用軟體labview和vb開發了數據採集系統，完善了焊接穩壓、調壓、電流恆值控制與智能調節功能，利用vb建立了焊接質量在線診斷系統，並完成了系統組裝調試與工藝試驗研究工作。
  14. In the study, what ' s more, some particular experiment phenomenon are explained by means of theories, such as water move, the change of water and ice. in the test, the preliminary propagation of the hard rock containing a small mount of aperture is dominant during the test, inner damage of soft rock containing a large mount of apertures is largely propagating with the time increasement of circle, because the circle time is limited, the damage propagation can not be observed during enough times

    試驗發現，對于強度較大，顆粒孔隙閉合程度較高時最初的幾次凍融循環對損傷的擴展起著主導作用，而後逐漸趨于恆值;而對于強度較低，孔隙貫通程度較高，離散性較大的軟砂巖，隨著凍融循環次數的增加，損傷變量增大，由於本次試驗凍融次數有限，未能觀察到凍融循環次數較高時的損傷變量變化情況。
  15. A zero - voltage starting method is brought forward which switch the starting from separate exciting to self - exciting successfully ; pll ( phase lock loop ) technology is employed to realize the frequency tracing and constant phase angle control ; igbt driving and protective circuit suitable for parallel inverter is developed, which successfully solve the problem of time compensating and overlapping regulation for the driving signals ; a novel and practical over - voltage protective method for parallel inverters is presented which effectively avoid the possible over - voltage destroy to the inverter. xu haiwen ( power electronics and electric driving ) directed by senior engineer peng yonglong

    提出了一種零壓啟動的他激轉自激方法；通過採用鎖相環技術實現了逆變器工作頻率的自動跟蹤和容性逆變角度的恆值控制；設計了適用於並聯諧振型逆變器的igbt驅動與保護電路，解決了驅動信號的時間補償以及重疊角的可調問題；提出了一種新穎、實用的逆變器過壓保護方法，有效地解決了並聯型諧振逆變器過壓保護這一難題。
  16. I do not know the shooting star can fly how long, be worth undeserved pursuit, i do not know oriental cherry can leave how long, the value is undeserved wait, but the friendship that i know us can resemble the beauty like firework, resemble the eternity like star, be worth me to be withheld with lifetime

    我不知道流星能飛多久，值不值得追求，我不知道櫻花能開多久，值不值得等候，但我知道你我的友誼能象煙花般美麗，象恆星般永恆，值得我用一生去保留
  17. The relationships between leakage current, environment humidity, environment temperature and level of pollution are studied, then, the problem of fixed value alarming model is analyzed. it proposed a nonlinear alarming model based on fuzzy reasoning method to increase the reliability of prediction. all the software has been realized by visual basic and vc programming language

    認真研究了污穢泄漏電流與環境溫度、濕度和污穢程度之間的關系，指出了以往採用恆值報警模型存在的問題，提出採用基於模糊推理的非線性報警模型的方法，以解決系統報警不可靠的問題。
  18. Another means is to extract rotation - invariant and translation - invariant features without registration. the purpose of this means is to avoid error cause by registration

    為了避免圖像配準時引入的偏差，本文採用的另一類特徵提取思路是不進行圖像配準，直接提取對旋轉和平移都保持恆值的不變特徵。
  19. The relationships between leakage current, environment humidity, environment temperature and level of pollution are studied, then, the problem of fixed value alarming model is analyzed

    認真研究了污穢泄漏電流與環境溫度、濕度和污穢程度之間的關系，指出了以往採用恆值報警模型存在的問題。
  20. 2. according to the weighted average, soil co2 concentration is 0. 58 - 13. 29 times of that in atmosphere and is relatively lower than similar research, meanwhile, soil co2 concentration in profile varied irregularly, which possibly is due to the chemical and physical characteristic of loess soils, season change and arid climate etc. the variation of soil co2 concentration in profile is mainly controlled by soil temperature and soil moisture, in contrast with soil temperature, the control role of soil moisture is minor. in conclusion, in order to have a good command of the distribution and change rule of soil profile co2 concentration as well as its effect factors, multi - point and successive location experiment should be made, meanwhile establish indoor soil - pillar monitoring experiment

    土壤co _ 2的濃度約為大氣co _ 2濃度的0 . 58 ? 13 . 29倍與同類研究相比要低，這是與黃土的土質特性，觀測期又逢特別乾旱年制約了土壤微生物的活動，再加上土壤中有機質虧損，養分不足造成的；土壤co _ 2含量的變化是隨溫度的升高而升高，在夏季達最高值，冬季最低；在土壤co _ 2濃度變化的影響因子溫度和水分中，溫度的影響作用高於水分；土壤剖面co _ 2濃度隨著深度增加，總的變化趨勢是遞增的，但也有反復，甚至有的順剖面而下幾乎保持一恆值，這與季節變化和黃土自身結構的通透性以及在觀測期內的乾旱氣候等條件有關。
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