電勢差計 的英文怎麼說

中文拼音 [diànshìchājì]
電勢差計 英文
potentiometer
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  1. Residual electromotive force of potentiometer

    電位差計殘余電動勢
  2. The studies of in - layer heterogeneity are as follows : the text depicts the characteristics of heterogeneity by calculating the coefficient of variability, kmax / k and k. max / k. min of sand layers of different sedimentous microfacies ; divides interlayer into two types, and counts their numbers, thickness, frequency and density of a single sand layer according to the characteristics of lithology and logging, finally summarizes the characteristics of interlayer distributing ; sets up five in - layer heterogeneity models and points out that the primary models are model a and c. the studies of between - layer heterogeneity are as follows : the text depicts sand layers " growth and distributing conditions by calculating the lamination factor, sandstone density and overlap coefficient ; makes certain the lithology and thickness of interlayer by the method of contrasting the typical curves

    層內非均質性研究，通過計算不同沉積微相砂體滲透率的變異系數、突進系數以及級差來說明主要儲集微相的非均質特徵；據巖性及電性特徵，將層內夾層分為兩類，統計單砂層段內夾層的個數、累積夾層厚度、夾層頻率及夾層密度，並且根據夾層頻率及密度平面分布圖統計出每層的頻率相對高值區和低值區，總結夾層分佈特徵；根據物性參數隨深度的變化趨勢建立了五種儲層層內物性非均質模式，指出研究區內以a型和c型模式為主。
  3. The analysis results show that : the frequency characteristic curve assumes the downtrend, so the electrical energy measurement of the induction meter will produce biggish error when the content of the harmonic is big, no matter taking the whole energy as measurement standard or basic wave energy

    研究分析結果表明：感應式電能表的誤差頻率特性曲線呈迅速下降趨勢，因此在電能計量中，不管是以全能量為計量標準還是以基波能量為計量標準，當諧波含量較大時對感應式電能表的電能計量將會產生較大的影響。
  4. According with the specialty of the grinding productive line, the advanced agility and credible plc integrated control system is designed to in place of relay control system that owns bad reliability and bad alterability. the environment is improved. it also meets the tidal current of material transportation controlling, tally with the up trend of the science and technology in the sugar - refinery

    為解決糖廠壓榨提汁生產線的傳統繼電控制系統的可靠性與可更改性差，操作工人工作環境極差等缺點，結合糖廠科技發展的趨勢與當前物料輸送線多採取集中控制的潮流，設計採用了先進、靈活、可靠的plc控制技術對壓榨提汁生產線進行集成控制。
  5. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  6. We find the decay rate of 7be in be is smaller than that in au. the change of decay rate ( 0. 71 + 0. 32 ) %, indicates that the environment can indeed alter the decay rate, and the electronic affinity is not the only factor affecting the decay rate, so that one has to take the structure of the host materials into account in explaining the change of the decay rate

    本工作將反應p + 7li 7be + n產生的7be分別注入至預計電子親和勢相差較大的材料be和au中，測量7be在這兩種材料中的衰變率的變化，發現7be在be中的衰變率要小於在au中的衰變率，其相對變化為（ o
  7. However, df pre - processing is not required in a interferometer direction finder. it only makes use of the phase relations or differences of sensors disposed at different position. azimuth and elevation are caculated from the phase differences or displayed directly on a crt drived by the voltage or current from the phase differences

    干涉儀測向不必進行測向信號預處理而是直接或間接求取在空間上分開的傳感器上感應電勢之間的相位關系，即干涉相位差，方位角或仰角是直接由干涉相位差計算得到，或將兩基線正交的天線陣的干涉相位差轉化為驅動電壓（電流）分別加到crt陰極顯示器的垂直偏轉線圈和水平偏轉線圈，模擬顯示出來波方位，干涉儀測向為典型的相位測向方法。
  8. At the same time, liquid crystal science harvests satisfyingly, its research field has extended to physics, chemistry, electronics, biology, etc. surface orientation of liquid crystal molecule ( lcm ) is a key technique in the application of lcd, the effect of orientation plays an important role in the basic performances, such as uniformity, visual angle, aberration, response, threshold of voltage and so forth

    液晶自1976年在世界上首次應用於計算器的顯示屏以來，就以其輕量、薄型、能耗低、顯示面積大等優勢在顯示應用方面得到迅猛發展，而同時，液晶科學也得到了全面發展，研究領域遍及物理、化學、電子學、生物學等各個學科。液晶分子取向控制技術是液晶板顯示應用中的一個關鍵技術，取向程度的好壞對液晶顯示器的均勻性、視角、色差、響應速度、閾值電壓等基本性能都有重要影響。
  9. In present dissertation, the model of ert was established, the method to deduce the system equation using finite element method ( fem ) was discussed, and the process of calculating the voltage, resistance and sensitivity matrix through numerical computation was also introduces. because during the process of positive problem solution, errors are unavoidable, so the evaluation of the results were carried out through data and diagram, also the influence to the results caused by the change of parameters was analyzed

    由於在正問題求解過程中，被測域的離散化、計算公式的離散化以及數值計算的近似處理等都將不可避免的引入誤差，因此論文中對計算結果進行了評價，分析了傳感器的參數（電極數，電極尺寸等）以及計算過程所用參數（如剖分精度）的改變對計算結果（電勢、電阻、敏感場）的影響。
  10. 2. using a new method, virtual boundary element method ( vbem ) to electromagnetic calculating. this method, same as boundary element method ( bem ), need not analysis all the field area, and need not specially deal with no closed in boundaries. future more, vbem has advantage in calculating speed, and can avoid singularity integrating being predestined in bem

    2 .使用了一種新方法，虛邊界元方法用於強流電子槍電子軌跡的模擬，這種方法與邊界元法一樣不須要對所有場域進行計算，對于不封閉場域不須要做特殊處理，從而避免了有限元法和有限差分法的方法缺陷，它具有計算速度快的優勢，且不存在邊界元法所不可避免的奇異積分。
  11. Then the constant of peukert equation is calculated from the linear interpolation. simultaneity the characteristic curves of the battery capacity, electromotive force and inner resistance are fitted with least - squares. the maximal of relative error between the calculated values from the models and the experimental data is 2. 59 % under 50a discharge current

    利用peukert方程的變形式，用線性插值法計算出鋰離子電池的peukert常數值；利用最小二乘法擬合了該動力電池的容量特性、電動勢和內阻特性曲線；在50a的放電電流下，數學模型的計算值與試驗結果的最大相對誤差為2 . 59 。
  12. This paper has conducted the research from six aspects to our country inhabitant sports consumption. the first part, analyzed the topic background and significance of this paper selected, the domestic and foreign research summarize, structure arrangement and this article main innovation place ; the second part, under the foundation of synthesizing the predecessor ' s viewpoints, the paper defined the connotation of inhabitants ’ sports consumption, and analyzed the function of the sports consumption from the economy, the society, the psychology, the body principle aspects, in this foundation, pointed out the inhabitants ’ sports consumption essentially belongs a part of development and enjoying consumption ; the third part, analyzed the changed development and present situation of our country inhabitants ’ sports expends, from sports aspects of consumption demands, consumption scale, consumption pattern, consumption way, consumption environment, sports population, and pointed out the existed question and its disparity with the developed country ; the fourth part, analyzed the influence factors of the development and present situation of our country inhabitants ’ sports consumption, mainly promoting factors are “ the plan of all the people ' s fitness ”, the beijing olympic games, inhabitants ’ healthy sports consciousness and the television sports and so on ; the restricting factors mainly displays in the income horizontal insufficiency, service industry proportion is not high, dual economic structure restriction and waste use of during - odd leisure and so on ; the fifth part, unifying the macroscopic background of our country economy

    第一部分，分析了本文的選題背景和意義，國內外研究綜述，結構安排和本文主要創新之處;第二部分，在綜合前人觀點的基礎上界定了居民體育消費的內涵，並從經濟、社會、心理、身理方面分析了體育消費的功能，在此基礎上，指出居民體育消費本質上屬于發展和享受消費的一部分;第三部分，從體育消費需求、消費規模、消費結構、消費方式、消費環境、體育人口等方面分析了我國居民體育消費的變化發展現狀，並指出存在的問題及其與發達國家的差距;第四部分，對我國居民體育消費發展現狀的影響因素進行了論述，主要促進因素有全民健身計劃工程的實施，我國體育事業、產業的發展壯大，居民健康、體育意識的增強和電視體育的引導等;制約因素主要表現在收入水平不足，服務業比重不高，二元經濟結構的制約和餘暇時間的浪費利用等等;第五部分，結合我國經濟發展的宏觀背景，分析了我國居民體育消費發展的趨勢。
  13. Summarizing the development statement of monitoring technology for bridge, based on principle of pulse laser ranger detection and fiber - optic strain measurement, in view of the problem affected by single - chip inherent feature, integrating the goodness of cpld device and single - chip, using a / d converter to measure the count quantization error, a strain measurement system is worked out. the above system chiefly consists of light source, optic fiber sensor, photo detector and signal processing circuit

    本文綜述了國內外橋梁監測技術的發展概況，在深入研究脈沖激光測距和光纖應變測試原理的基礎上，針對單片機固有計數頻率低、計數量化誤差大和延時不固定等不足，結合cpld計數頻率高、延時小而固定和單片機控制功能強的優勢，並採用模數轉換技術設計計數量化誤差測量電路，提出了基於激光脈沖時間測量法的光纖應變測量的方案。
  14. Faced the present market position, the travel service ought to introduce and apply from matured achievement, such as jit, mrp, the design and development of travel service product ( difference & personality ), rules for testing quality, enterprise brand strategy, travel service information management and electronic business, travel service marketing, travel service human resource and so on, from other industry based itself upon local superiority and its character

    旅行社在當前的市場形式下，應該立足本土優勢和特點，大膽地引進其他行業的成熟研究成果，並移植到旅行社來，比如jit思想， mrp思想，旅行社產品的設計與開發（差異化與個性化） ，全面質量管理體系，企業品牌策略，旅行社信息管理系統及電子商務手段，旅行社市場營銷策略、旅行社人力資源策略等。
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