精確限度 的英文怎麼說

中文拼音 [jīngquèxiàndù]
精確限度 英文
limit of accuracy
  • 精 : Ⅰ形容詞1 （經過提煉或挑選的） refined; picked; choice 2 （完美;最好） perfect; excellent 3 （細）...
  • 確 : 形容詞1. （符合事實; 真實） true; reliable; authentic 2. （堅固; 堅定） firm
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 精確 : accurate; exact; precise
  • 限度 : limit; limitation; measure; tether
  1. " body gamma knife is mainly used for curing all kinds of body tumors, and the latest generation three - dimensional directional actinotherapy devices. it incorporates many modern high - techs and effectively break through the limit of actinotherapy devices available while precisely focused and three - dimensional directional. it also has adjusted actinotherapy, wide range irradiation and common actinotherapy, and protects the normal organism from damage at best while its dosage precisely destroys tumor organism

    「體部伽瑪刀」主要用於治療各種體部腫瘤，是目前世界上最新一代立體定向放療設備，它吸收了眾多現代高新技術成果，有效地突破了現有放射治療設備的局限，兼備精確聚焦立體定位等優點，具有適形調強放療大野照射及普通放療等多種功能，能夠在劑量準確摧毀腫瘤組織的同時，最大程度地保護正常組織免受損傷。
  2. Abstract : propagation characteristics of r wave in a pavement structures are analysed in this paper. based on the propagation characteristics of r wave, the horizontal propagation wave is simulated by using r wave, the vertical propagation wave is also simulated by using body wave in calculating dynamic response of pavement structures. the availability and accuracy of dispersion curves measured by sasw in pavement structures is analysed by using the presented method used to calculate dynamic response

    文摘:利用有限單元法分析了道路結構的r面波傳播特性：在深度方向上衰減較慢，傳播較深，波動性大.提出了在道路結構動力響應計算中，利用面波來模擬水平向傳播波，利用體波來模擬豎直向傳播波.通過算例來驗證該方法的可靠性和精確性，並利用這一動力響應計算方法分析了道路結構表面波測試中所獲彌散曲線的可靠性
  3. 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
  4. Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example, " exact " confidence interval, wald confidence interval and bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed. also, several better confidence intervals such as are also presented. secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two - stage interval estimate procedures. at the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. the numerical computation shows that the method considered in this dissertation have good properties and applied value

    同時，由於poisson分佈的特性，我們知道不存在其參數區間長度小於0 . 5的置信區間，基於這些情況，我們主要展開了以下兩個方面的研究：一是利用數值計算分析與理論分析的方法對現有的若干置信區間如「精確」置信區間， wald置信區間， bayes置信區間等進行分析比較，發現了一些缺陷，針對這些缺陷，我們進行適當的修正，並得到幾種性質較好的置信區間如：修正大樣本區間jeffreys原則下置信區間二是針對已給定的置信系數與區間長度，我們提出了一種漸近的兩階段區間估計程序，並利用數值計算的方法，在各種置信系數與區間長度限定下，算出了最優的第一階段觀測次數（抽樣量） ，大量數據表明，本文考慮的方法性態良好，具有應用價值。
  5. Accuracy limit factor of a protective current transformer

    保護用電流互感器的精確度極限因數
  6. However, the definition of female androgen deficiency, as recently provided by the princeton consensus statement, is not precise enough and may lead to over - diagnosis due to the high prevalence of its diagnostic criteria : androgen levels below or within the lower quartile of the normal range and concurrent * * * ual dysfunction

    可是，婦女雄激素缺乏的定義並不足夠精確，而且它通用的診斷標準（雄激素水平低於或等於正常范圍的低限，且並發性功能障礙）可能會導致過度診斷。
  7. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  8. Important features of mitex rollers include : long service life and cost efficiency ; high chemical resistance ; extreme high operating temperatures ; best running properties at high speed ; dynamic endurance ; excellent wear and cut resistance ; minimal hardening and glazing ; excellent coating and transfer characteristics ; and adjustable electrical properties

    Mitex輥產品優點：在高速度下保持優異性能；使用壽命長，效率高；抗化學腐蝕；超耐高溫；耐磨；最低限度的硬化和磨光；優異的塗布和轉移性能；精確的電導率。
  9. According to eigenvalue equation ( general formula ) of the energy method of the plane steel frame structure stability, and considering the restriction of the end of the column of the main steel frame and function of deflection curve gained from the differential balance equation general resolution, we get the equation for calculating the length coefficient of the main frame structure stability of the steel arch gate and the resolutions are also given

    根據平面剛架穩定性能量法特徵值方程（通式） ，考慮弧形鋼閘門主框架柱的柱端約束的特殊情況，求出撓曲線函數（試解函數）通解，得到弧形鋼閘門主框架柱穩定性計算長度系數方程。其中弧門主框架主橫梁式形框架的臨界荷載比較現行規范推薦的有限元法簡單方便、結果精確及物理概念明確等優點。
  10. In the hogging condition, double bottom and the side shell remain the ultimate bucking strength, deck and upperwing tank remain the yield stress, and the other parts keep elasticity. then the key to calculate the ultimate strength of ship hull girders is to ascertain the ultimate bucking strength of the stiffened panels. in this regard, the developed formulation is designed to be more sophisticated than previous simplified theoretical method for calculating the ultimate strength of stiffened panels under combined in - plane bending and lateral pressure. fabricatio n - related initial imperfections ( initial deflections and residual stresses ) are included in the panel ultimate strength calculation as parameters of influence. all possible collapse modes involed in collapse of stiffened panels, including overall buckling collapse, column or beam - column type collapse, tripping of stiffeners and local bukling of stiffened web are considered

    確定了船體梁整體破壞時的剖面應力分佈之後，關鍵在於確定板架的極限屈曲強度。本文充分考慮了在縱向彎曲、橫向壓力作用下加筋板可能發生的幾種破壞模式，即板架的整體屈曲破壞、樑柱形式的破壞、筋的側傾、腹板的屈曲並同時考慮了初始焊接殘余應力、初撓度的影響，使其更精確的計算加筋板的屈曲強度。對于加筋板中加強筋腹板的局部屈曲，採用解析法推導出筋的腹板的撓度方程及其邊界條件，求解相應的方程，從而計算出腹板的局部屈曲應力。
  11. Construction of the formwork and preparation of the metal reinforcement for shells required particular care and accuracy because of their limited thickness.

    由於殼體的厚度有限，殼體的金屬能加工制備與模板建造需要特別細心與精確。
  12. This paper uses an optically modulated scatterer system to measure microwave field with minimal disturbance. this method is especially adapt to measure magnitude and phase of microwave field close to conductor and microwave field with complex path between source and field. so it can be used to measure radiation antenna ’ s near - field and microwave into slots

    光調制散射器的測量方法最大限度地減少了測量裝置對被測場的擾動，特別適合於測量導體附近和具有復雜路徑場的幅值和相位分佈，可以用於對輻射天線近場的測試以及孔縫耦合中場的測量，可為天線的設計，微波孔縫耦合效應的研究提供較精確的實驗數據。
  13. In this paper, the fundamentals of cable forces by frequency method are introduced. the curve fitting method is utilized to get the correcting formula of cable forces and frequency through the experiment. on the other hand, a kind of catenary line cable element is introduced in this paper, owing to the inaccuracy caused by correcting struss element in fem

    本文還介紹了頻率法測索力的基本原理，並通過試驗，利用曲線擬合法得出索力頻率之間的修正關系式；其次，由於有限元計算中，索元所採用的修正桿元所帶來的不精確性，對于長索其精度更難保證，因此，本文介紹了一種計算精度高、工作量小的懸鏈線索元。
  14. Thirdly, the conclusions of the two aspect applications are given as follows : the exploration of the application of the evaporation duct prediction to the flux relationship research and evaporation duct predicting shows that based on this predicting method and with microwave refractometer, as sensor, ( 1 ) the dimensionless gradient function of temperature, humidity and refractivity in the flux relationships can be determined with higher precision, ( 2 ) the limitations of conventional observations on the predicting accuracy for evaporation duct can be avoided and the precise prediction for evaporation duct can be obtained with the accurate measurement of refractivity profile within a few meters. the radar performance under given evaporation

    三、對兩個應用問題的討論表明：基於本文發展的蒸發波導預測理論，使用微波折射率儀為傳感器： （ 1 ）開展通量關系研究時，可以用於邊界層溫度、濕度和折射率無量綱梯度函數的精確測定和得到蒸發波導環境預測所需的偽折射率參數化函數關系； （ 2 ）預測蒸蒸發波導環境特性和傳播特性及其應用研究發波導環境時可以避免使用傳統氣海界面要素測量中存在的局限，並用折射率音d面不太高的精確測量結果精確預測蒸發波導環境。
  15. Obviously, the geronimo team has thought through scoped access to data sources thoroughly and has been working at refining data source access to the module level

    顯然， geronimo小組已構想了對數據源進行徹底的限定范圍的訪問，並且努力將數據源訪問的精確程度提高到模塊級別。
  16. A new finite - difference method is developed for seismic modeling and reverse - time migration based upon the voronoi cell construction on irregular grids. curved velocity boundaries and irregular earth surface can be accurately represented using the irregular grid implementation. therefore the modeled and migrated results can be more accurate, and meanwhile, the efficiency is still preserved using an explicit finite - difference scheme

    本文的方法可以實現任意非規則網格上的顯式差分計算，因此該方法在保持了傳統的矩形網格差分演算法簡單、高效特點的同時，又能精確地描述彎曲界面和起伏地表，提高了有限差分地震模擬和偏移結果的精度。
  17. Errors intrinsic to the testing systems, such as the inability to precisely measure dna restriction fragment lengths, are well compensated for by interpretation guidelines which take these kinds of errors into account

    鑒定系統本身固有的誤差，如不能精確的測量dna限制酵素片段長度，可以由解釋規則來很好的彌補，因為解釋規則會考慮到這些種類的誤差。
  18. Fresh inlet temperature range which satisfies given error limits is achieved, and the effect of instrumentation precision on accuracy of test results is analyzed by calculating and analyzing uncertainties of sensible effectiveness tests

    通過對顯熱效率測試的不確定度的計算與分析，得出了滿足給定誤差限的新風進口溫度范圍，並分析了儀表精度對測試結果準確度的影響。
  19. The most commonly applied assay parameters accuracy, precision, detection limit, specificity, selectivity, calibration linearity or nonlinearity, stability, recovery, reproducibility and repeatability are carefully defined along with some recommendations required for assessing data acceptability arrived at the conference on analytical methods validation

    美國分析方法認證會議曾推薦用分析參數（準確度，精密度，檢測限度，專屬性、選擇性、校準線性或非線性、穩定性、回收率、重演性與重覆性）作為判斷實驗數據的可采納性。
  20. The risk factors are deduced from a single exposure of more than 1 gy and are subject to certain uncertainties. the figures are therefore neither precise nor final. they should be used carefully mindful of their limitations

    因此危險度分析是推測性的，所根據的數據和資料主要來源於一戈以上單次照射的結果，而且有一定的不確定性，所以在應用時要留意其局限性，不能視其為精確的或不變的數據。
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