精確指數 的英文怎麼說
中文拼音 [jīngquèzhǐshǔ]
精確指數
英文
index of precision-
That the antenna points at the aerocraft very precisely can utilize the gain of antenna, minishing the power of transmitter, and propagating data very gualitily effectly
在無線測控系統中，天線精確指向飛行目標，可最佳利用天線增益，減小發射功率，高質量的進行控制和數據傳輸。As object lessons to explain : 1 the nature and habits of oviparous animals, the possibility of aerial flight, certain abnormalities of vision, the secular process of imbalsamation : 2 the principle of the pendulum, exemplified in bob, wheelgear and regulator, the translation in terms of human or social regulation of the various positions clockwise of movable indicators on an unmoving dial, the exactitude of the recurrence per hour of an instant in each hour, when the longer and the shorter indicator were at the same angle of inclination, videlicet, 5 5 11 minutes past each hour per hour in arithmetical progression
他把它們作為實物教材，用以說明： 1卵生動物的本性與習性，空中飛行的可能性，一種異常的視覺器官，世俗界用防腐藥物保存屍體的方式。 2體現于擺錘輪與整時器上的鐘擺的原理不動的針盤上那可移動的正轉的長短指針在各個位置作為人或社會規范所包含的意義長針和短針每小時在同一傾斜度相遇的那一瞬間，也就是說，按照算術級數，每小時超過5 5 11分的那一瞬間，每小時重復一次的精確性146 。Abstract : in the research of internal combustion engine, recordingin - cylinder pressure and temperature is an essential technique to study the thermal cycle of internal combustion engine. the combustion analyzer developed in this study will give both the measurements at sampling points per crank angle or sampling cycle, calculate and show the real time parameters which decide the working process of internal combustion engine, such as pressure accelerating rate, indicateed mean effective pressure, cycle - to - cycle variation, heat release rate, etc. compared with the imported congeneric products, the analyzer has many advantages such as chinese interface, low price, easy operateing, convenience in maintainance and easy upgrading
文摘:為了測錄內燃機缸內的壓力及溫度，開發了一種內燃機燃燒分析儀.該分析儀由國產高速數據採集卡及自行開發的控制軟體組成.它不僅能精確設置每度曲軸轉角內采樣點的個數和採集循環數，而且在採集過程中能實時計算和表徵內燃機工作過程的壓力升高率、平均指示壓力、循環變動率、放熱率等參數.經實際使用以及與國外產品相比表明，此分析儀具有全中文界面、價格低、操作簡單、使用維護方便、功能便於擴充等優點It shows that information function can more accurately evaluate the quality of items and test and the ability of examinees than ctt does, so it has more strong guidance in editing test
研究結論表明：信息函數較經典測量理論能更精確地評價項目質量、測驗質量及被試能力水平，因而對測驗及學生能力水平的評價更科學，同時對測驗的編制有更強的指導作用，值得推廣。Plant endemism is the key problem in floristic study. analysis of endemism in a flora has significant implications in demonstrating floristic richness and diversity, the relationship between plants and their environment, and also in conserving biodiversity of the flora. in view of the situation that most of the past studies on endemism were qualitative, this study is the first tentative approach to the introduction of quantitative indices to the analysis of floristic endemism, with an purpose to push the study of endemism from qualitative to quantitative. four quantitative indices are introduced, i. e. level of endemism ( l ), coefficient of endemism ( c ), degree of endemism ( d ) and general index of endemism ( a ). mathematical formulae have been given to each of the above indices and explanations for them have been presented, and the scope of their use in floristic studies has been delimited and exemplified in this paper. the result shows that they are of good applicability. the proposed indices embody full information of plant systematics and plant geography. with the aid of qualitative analysis, the application of the proposed indices will improve the comparability and precision of endemism study in floristics
過去有關特有現象的研究主要限於定性的分析，可比性和精確性較差.該文嘗試引入特有現象的定量化指標，以推動特有現象的分析研究從定性水平向定量水平邁進.所引入的4種定量化指標分別是：特有水平、特有系數、特有度以及特有綜合指數.對每種量化指標都給出了數學表達式，說明了其區系學意義，例證和界定了這些指標在植物區系分析中的應用，結果表明，它們有良好的適用性.這些指標充分地包含了植物系統學和植物區系學的信息.結合定性分析，這些指標的應用將增強植物區系研究的可比性，使植物區系特有現象的分析達到更精確的水平In this way, the self - similar multi - fractal property of the hadronic system produced in z0 ( ) decay is strictly confirmed and the corresponding fractal dimensions and levy index are obtained in the first time using the high statistics data from the l3 experiment at lep
這樣就精確地驗證了在z ~ o衰變能量下的e ~ + e ~ -對撞末態強子系統是多重自相似分形，並首次用實驗測出了相應的分形維數與l vy指數。First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled
首先在推導超聲相控線陣換能器聲場的指向性的基礎上，就各個晶片幾何參數對指向性指標（主瓣寬度、旁瓣幅度、消除柵瓣） 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述，並在綜合各方面影響的基礎上，提出了晶片幾何參數優化設計的原則和方法，編寫了設計程序和界面。Then, based on above review, we propose an analytical tachyon inflation model driven by scalar field with bom - infeld - type lagrangian. we find it ' s an analytical model if we choose an exponential potential. we compute it ' s power spectrum and find that it can explain the evolution of universe
如果將勢選擇為指數勢，模型變成精確可解的，本文找到了一個精確解析的宇宙暴漲解並利用該解計算了cmb譜，發現這個解可以用來解釋宇宙的演化。I am not confident that exponential - variate distribution is genuinely an accurate model here
）我不能確定這里的指數變量分佈確實是一個精確的模型。Since the mathematical models of a lot of involved industrial systems in the control practices are difficult to be established, and that the structures ' and parameters of industrial plants always have some uncertainties, it is hard to achieve the anticipated control indexes by using control theory and modern control theory
由於控制實踐中的許多復雜的工業系統的數學模型很難精確建立，而且工業對象的結構和參數往往具有一定的不確定性，因此，應用經典控制理論和現代控制理論很難達到期望的控制指標。Firstly, a new interface roughness scattering model is developed using exponential autocovariance functions. the simulation results show that the electron mobility calculated using the exponential model are in good agreement with the experiment data
先推導了一種sic反型層表面粗糙散射的指數模型，研究證明應用此模型能夠更精確地研究sicmos溝道載流子的輸運規律。This method introduced in this paper not only solves many problems that can not be solved by fuzzy mathematics and classical mathematics, but also makes the assessment results more objective and accurate. besides, it can express the assessment results with quantitative values ; therefore it can show the level of the product integrated performance indexes more completely, which improves the assessment ' s support effects on the design process
本文根據綠色產品的特點和評價指標體系的構成，創造性地將模糊物元分析方法引入綠色產品評價，不僅解決了模糊數學和經典數學應用在評價過程中難以克服的一些缺點，而且使評價結果更客觀、更精確，並以定量化的數值表示評價結果，能夠較完整地反映產品的綜合性能指標水平。Most complete wireless weather coverage available : high and low day temperature in celsius or fahrenheit, weather type icon and text, real feel ( rf ) temperature ( what temperature really feels like ), wind direction, gust and speed in mph, km / h or m / s, uv index ( the sun ' s ultraviolet intensity level ), amount of day precipitations in in, cm or mm, pressure, visibility and more
最完整的無線天氣覆蓋可以利用:攝氏和華氏的溫度高低，天氣類型圖標和描述，實際感覺到的溫度（真正你感覺到的溫度） ，風向，風力和風速，時速或秒速，紫外線指數（太陽紫外線強度等級） ，降雨雪量精確到英寸，厘米，毫米，壓力可見的描述，還要其他的嗎In this thesis our results on factorial moment analysis of phase space with non - integer partition are presented, which further confirm this theory and provide in the first time a strict measurement of the hurst exponents and intermittency indices in 250 gev / c + p k + p collisions
本文通過對相空間進行實數分割時的階乘矩分析，進一步驗證了這一理論的正確性，並精確地測出了na22實驗組250gev / c ~ + pk ~ + p碰撞中的hurst指數與間歇指數In this paper, we study the finite iterated order of growth and the iterated convergence exponent of the zero sequence of nonzero meromorphic solutions of second order homogeneous linear differential equation, and obtain some precision evaluation
摘要研究了二階齊次線性微分方程非零亞純解的迭代級與零點迭代收斂指數，得到了它們的精確估計。In order to utilize the frquency resource adequately and increase the capacity of mobile communication system, the wireless electric wave propagation of existing mobile system always adopts the microcell structure. forecasting the path loss characteristic of electric wave accurately can provide the necessary condition for the layout and design of wireless network, at the same time it is a precondition for the research on the microcell mobile system. the methods of forecasting of wireless electric wave propagation can divide into two parts : one is pluse and respond, that is establish the empirical model based on experimental and statistical data ; the other is ray tracing method, that is establish the deterministic model based on theoretical analyse. the paper discuss the characteristic of wireless signal electric wave transmition in symmetrical atmosphere of earth, and introduce the common path loss transmition model in land mobile communication system, also point out the localization of these models based on experiential methods
而精確預測無線電波傳播路徑損耗特性，則為合理的微蜂窩無線網路規劃、設計提供了必要條件，同時也是研究微蜂窩移動通信系統性能的前提。無線電波傳播預測的方法分為兩類：一是用沖激響應法，即根據實驗、統計所得數據建立經驗性傳播預測模型；另一種是用射線跟蹤方法，即依據理論分析來建立確定性的傳播預測模型。本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。This paper introduces a method for calculating accurate coordinates in a cam contour. using a computer program, puts forward a technological process for machining the cam contour with a nc linear cutting machine. both of them are suitable for development of new products and localization of inport products
介紹運用計算機精確計算凸輪輪廓尺寸的方法及數控線切割機加工凸輪輪廓工藝.其計算過程是：先根據凸輪輪廓尺寸原始數據運用c + +語言編程，然後用計算機精確計算凸輪輪廓尺寸.其加工步驟是：先按數控線切割機的指令格式編程，然後線切割機按程序指令控制鉬絲的運行軌跡Secondly, during the braising offline temperature control loop of the oil production - lixiviating procedure, the controlled object, which is hard to build the extract model, has the characteristics of large inertial, big time - delay. the control strategy of the combination of fuzzy logic arithmetic and normal pid arithmetic is introduced in this paper, the basic principle and actualization method of fuzzy - pid are analyzed. the design model is simulated in matlab and the result proves good control performance
其次，玉米油生產浸出工序的蒸脫機溫度控制迴路中，被控對象具有難以建立精確的數學模型，且具有大慣性、大滯后的特點，研究運用模糊控制演算法和經典pid控制演算法相結合的控制策略，分析了模糊pid控制演算法的原理和實現方法，並運用matlab軟體對設計的系統進行模擬，模擬結果表明，達到較好的控制指標。Research on digitized virtual human is a multi - disciplinary subject. based on anatomy and physical and physiological - biochemistry character, digitized virtual human generally build a interactive human - like digitized model. this dissertation researches the application of digitized virtual human in acupuncture point and is a important branch of vhp ( virtual human project )
數字化虛擬人體的研究是目前一個研究熱點問題，虛擬人體是指在解剖、物理特徵、生理生化機能方面全面系統地建立一個互動式數字化人體模型，為醫學教育、臨床診斷和治療的研究提供精確的數學模型。Furthermore, numerical algorithms used to solve the linear system are introduced. next, after briefly discussing several causes of the late - time instability of the tdie solvers, a novel viewpoint about the instability is proposed. the marching - on - in - time algorithm ( mot ) is described and some temporal bases are discussed
其次，在簡要分析了引起時域積分方程（ tdie ）時間步進演算法求解的后時不穩定性問題的幾個原因后，指出引起時域積分方程時間步進演算法的后時不穩定性的主要原因是離散tdie時採用了不精確的數值計算方法和不恰當的近似。分享友人