精度極限 的英文怎麼說

中文拼音 [jīngxiàn]
精度極限 英文
limit of accuracy
  • : 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)...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • : 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
  • 精度 : precision; accuracy; degree of accuracy; precision accuracy; trueness
  • 極限 : 1 (最高的限度) the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
  1. Accuracy limit factor of a protective current transformer

    保護用電流互感器的因數
  2. For the hyper accuracy interpolation technique, which resolves the accuracy limitation of pixel physical size, derives out the star spot interpolation accuracy limitation based on the star spot mathematical model and photoelectric statistics

    針對克服像元尺寸對測量制的超內插細分技術,在建立了星點光斑數學模型的基礎上,利用光電統計理論,推導了星點光斑內插細分公式。
  3. 4. the thrust measurement device was calibrated, and the accuracy was 2 % fs. at the same time the signal of thrust measurement was input to the computer. e - type chromel - constantan thermocouple was used to measure the temperature of mpt, and the accuracy was 5 % fs. the vacuum measurement was realized by using zdf - 5427m vacuometer, and the accuracy was 3 % fs

    ( 4 )對推力測量系統進行了標定並實現了計算機採集,推力測量系統最大相對誤差為2 fs ;溫測量目前還只於對mpt諧振腔壁溫的測量,使用e型鎳鉻?康銅熱電偶即可較容易實現,其測量為5 fs ;真空測量採用zdf - 5427m微機型復合真空計,其由熱偶計和熱陰電離計復合而成,該真空計測量控制為3 fs 。
  4. Angle contact ball bearing can be subject to both radial and axial load, it also can be subject to pure axial load, its axial load capacity is depend on the contact angle and increased accordingly. it can be used for high speed and high precision application dueto high limit speed and pre - adjustable rigidity

    角接觸球軸承可同時承受徑向載荷和軸向載荷,也可以承受純軸向載荷,其軸向載荷能力由接觸角決定,並隨接觸角增大而增大,且轉速較高,剛性大還可預調,適用於高速、高場合。
  5. 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屈曲強。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、初撓的影響,使其更確的計算加筋板的屈曲強。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。
  6. The main conclusions are remarked as follows : ( a ) the theory formula between the ultimate tensile force and interface cohesive intensity has been established. according to ultimate tensile force from in - site measure, the scientific interface cohesive intensity parameter has been achieved, then, the numerical analysis of the tension - draw test has been made

    主要研究成果: 1 、從理論上建立拉拔試驗中「拉拔力」和「界面粘結強」的關系,再藉助現場實測的拉拔荷載,獲取釘土界面的合理粘結強參數,對拉拔試驗進行數值模擬分析,驗證了模擬模型中界面單元的可靠性和,並標定了數值試驗中土釘的破壞模態。
  7. It achieves full test automation from calibrating, running, failure diagnosis and data processing, which establish it an intelligent test system. in the software, a curve fitting program which based on the system ' s principle which can greatly improve the calibration precision and a safl mathematical statistics program for the test data are made

    在試驗系統軟體設計上,結合試驗機原理,採用基於原型函數的動態標定數據曲線擬合提高了載荷標定的;通過對比各種曲軸試驗數據的處理方法,同時考慮在實際運用中的效果,計算機統計採用了疲勞統計分析( safl )法。
  8. Examples indicate that the method is available and exact for implicit expressed performance function, and it is a new and effective way for structure reliability analysis

    實例數值結果表明,基於神經網路將隱式函數轉化為明確表達的狀態方程是可行的,同時該方法具有較高的,為結構可靠計算提供了新的有效思路和手段。
  9. To accurately predict forming limit, a criterion to reflect material performance in essence was indispensable besides increasing the fea model accuracy

    為了準確地預測成形,除了提高有元模擬外,應找到一種本質地反映材料性能的韌性斷裂準則。
  10. Vil gmagyars g _ hajl ka n h ny k p az pusztaszeri ki ll t sb l : magyarorsz g kir lyai, uralkod i, csal df i, c merei, t ? rt nete, t rk pek, mer tett pap r, plak t

    常州星光電子有公司生產整流二體引線,整流橋堆引線、數碼管引線、電感引線、電容器引線、耐熱合金圓銅線、高電導銅包鋼復合線纜,高圓銅線、鍍錫圓銅線。
  11. In this paper, the capabilities and limitations of the subspace identification techniques will be studied on response data on a microbus in driving conditions, the industrial applicability of using this kind of data for a modal analysis has been successfully investigated by doing some analysis on data measured in normal conditions

    經採用懸臂梁有元計算和實驗分析對比驗證,上述方法擁有高的辨識。本文論述了用子結構工作模態識別方法成功識別了一微型車的工作模態,並探討了工作模態分析實際應用情況。
  12. Limiting concentration of light component in distillate of binary batch distillation under constant reflux ratio

    恆迴流比二元間歇餾輕組分的
  13. A numeric method for computing limiting concentration of light component in the distillate of binary batch distillation under constant reflux ratio and hold - up in the column is introduced

    摘要介紹了採用恆迴流比操作方法,在塔頂、塔板持液時,間歇餾二元理想混合物,餾出液中輕組分的數值計算方法。
  14. This paper constructs fe models of srm in detail and analyzes the vibration mode and natural frequencies with the finite element analysis software package, and studies the influence of the stator structure of srm, such as stator poles, ribs, mounting feet, terminal block and structure parameters, restriction condition on the srm vibration behavior, the contrast to experiment result implies that the fea model is close to the real model for analyzing the vibration characteristics of srm

    本文基於有元分析方法,主要研究了定子凸、底座、散熱筋,加強筋,接線盒等結構以及結構參數對定子固有頻率和振動模態的影響,並且研究了約束條件下的sr電機定子振動特性。本文比較了模態實驗與有元分析結果,表明所建立的二維有元模型對分析sr電機的振動特性有較好的
  15. By measuring the distance of orbits, very weak signal can be detected because of the sensitive dependence on initial conditions

    理論上這種測量方法的測量可以無高,因此它可以用來測量其微弱的信號。
  16. In fact, hartmann - shack wavefront sensor is affected by the noise of ccd and the constructed error too. in our compare, a bridge is setup, which is the original wavefront composed by zernike polynomial, we transform the original wavefront into far field. then we can compare the accuracy of hartmann - shack wavefront sensor with the accuracy of the system of far field diagnosis in detecting the farfield, using diffraction limit and encircle energy

    我們在進行兩者相互比較的過程中,搭建了一個比較的橋梁,即由zernike多項式組成的各種原始像差波前,將它也變換到遠場作為原始理想遠場光斑,然後,以它的衍射和環圍能量曲線作為評價標準,比較hartmann - shack波前傳感器和遠場測量系統在光束質量診斷中的探測
  17. But in more situations the random variables generating counting processes may not independent identically distributed, and in all kinds of dependent relations, negative association ( na ) and positive association ( pa ) are commonly seen. the research and apply in this aspect are rather valuable. in chap 2 we prove wald inequalities and fundamental renewal theorems of renewal counting processes generated by na sequences and pa sequences ; in chap 3 we are enlightened by cheng and wang [ 8 ], extend some results in gut and steinebach [ 7 ], obtain the precise asymptotics for renewal counting processes and depict the convergence rate and limit value of renewal counting processes precisely ; at last, in the study of na sequences, su, zhao and wang ( 1996 ) [ 9 ], lin ( 1997 ) [ 10 ] have proved the weak convergence for partial sums of stong stationary na sequences. however product sums are the generalization of partial sums and also the special condition of more general u - statistic

    但在更多的場合中,構成計數過程的隨機變量未必相互獨立,而在各種相依關系中,負相協( na )和正相協( pa )是頗為常見的關系,這方面的研究和應用也是頗有價值的,本文的第二章證明了na列和pa列構成的更新計數過程的wald不等式和基本更新定理的一些初步結果;本文的第三章則是受到cheng和wang [ 8 ]的啟發,推廣了gut和steinebach [ 7 ] )中的一些結論,從而得到了更新計數過程在一般吸引場下的緻漸近性,對更新計數過程的收斂速狀態進行緻的刻畫;最後,在有關na列的研究中,蘇淳,趙林成和王岳寶( 1996 ) 》 [ 9 ] ,林正炎( 1997 ) [ 10 ]已經證明了強平穩na列的部分和過程的弱收斂性,而乘積和是部分和的一般化,也是更一般的u統計量的特況,它與部分和有許多密切的聯系又有一些實質性的區別,因此,本文的第四章就將討論強平穩na列的乘積和過程的弱收斂性,因為計數過程也是一種部分和,也可以構成乘積和,這個結果為研究計數過程的弱收斂性作了一些準備。
  18. In this paper, ansys is been used as numerical method. base on one example, fem model is created by using parameterized modeling and the develop technique by ansys, the effect of the model size has been studied. lt has been certified that the proper parameter value of the model is helpful to develop the analysis accuracy. the length, the diameter and the elastic modulus of pile is changed to study their effect. the analysis shows that : as to frictional pile, big length, big diameter, and great modulus is helpful to develop the bearing capacity of piles

    並分析了模型尺寸對分析結果的影響,結論表明,適當的選取模型參數,有利於分析的的提高。文章還通過改變不同的樁土系統參數,樁長,樁的直徑,以及樁的彈性模量,得到了樁土系統的響應,繪制了p ? s曲線,結論表明,對于摩擦樁而言,增大樁長,提高樁的直徑,或者提高樁的彈性模量,有利於提高單樁的承載力。
  19. Abstract : the practical cad technology to manufacture high accuracy relief grinding cutters is put forward. the methods to improve the cutting performance and regrinding life of the cutters are introduced, and some calculating examples are presented

    文摘:提出了方便快捷地加工高鏟磨刀具的cad實用工藝,給出了改善刀具切削性能和增加重磨(壽命)的方法及計算實例。
  20. By analyzing the scalar velocity bound curve and combining distribute of acceleration limit, a time - optimal control algorithm was designed. the results of experiments show it can make full use of the capacity of motor while realizing the stability and positioning accuracy of system, solving the problem of time - optimal control

    通過對標量速邊界曲線的分析,結合加速分佈情況,設計了一種在特定軌跡約束下機器人時間最優軌跡規劃演算法,以在保證系統穩定性和定位的前提下,充分發揮電機的性能。
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