精確時計修正 的英文怎麼說

中文拼音 [jīngquèshíjìxiūzhēng]
精確時計修正 英文
chronometer correction
  • 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
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 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...
  • 修 : Ⅰ動詞1 （修飾） embellish; decorate 2 （修理; 整治） repair; mend; overhaul 3 （寫; 編寫） write;...
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 精確 : accurate; exact; precise
  • 時計 : chronometer; 時計差 chronometer correction
  1. 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。
  2. With the experiment part, the errors of sk - 21 nc machine tool have been measured, and a serial of data is gotten which lead to the error discrimination. ( 3 ) based on the kinematical theory of mbs, the calculation methods for the ideal center envelop curve of grinding wheel on cam grinding, the practical cutter track, inverse contour of cam, ideal nc instructions, precision nc instructions, the inner / outer normal and the fitting criterion of curve have been all discussed in detail in this paper

    （ 3 ）通過精密加工的約束條件方程，探討理想刀具路線、逆變數控指令與實際刀具軌跡之間的映射關系，解決誤差補償技術提高加工精度的核心問題? ?當要求數控磨床的砂輪中心準確到達給定的理想點時，精密數控指令值究竟該是多少，如何能夠通過計算，獲得這樣的數控指令值，給出經修正的數控指令計算方法。
  3. In this thesis the author developed a method for measuring the axial and radial deformation in triaxial test by analyzing the digital image from area ccd and correcting the errors. this method is more accurate and more convennient than traditioanal techniques, and can be used to deformation measurement for unsaturated soil specimn directely

    其基本原理是利用ccd圖像傳感器獲取土樣圖像信息，經圖像板採集、 a d轉換和預處理後送入計算機進行數字圖像處理，求出土樣在不同時間的徑向寬度和軸向高度數據，並經過系統誤差的修正，從而精確得出土樣的變形量。
  4. Abstract : technology dimensions of work parts always exceed the determined technology dimension limits. but when the work parts are big enough, it is still possible and valuable to modify the work parts " following technology process and technology dimensions, which are respectively called as dynamic technology process ( dtp ) and dynamic technology dimension ( dtd ), to ensure them to be qualified. a mathematical model is proposed which is about how to plan the dtd once the dtp is determined. a software has been written to testify the correctness of the above model. this model will be very useful in the capp and online quality assurance in the manufacturing of precise machine parts

    文摘:工件的工藝尺寸在工藝過程中經常會超出許可的范圍，但當這些超差工件仍有足夠的加工余量時，通過修改其後續工藝路線（稱為動態工藝路線）及工藝尺寸（稱為動態工藝尺寸）仍有可能將其加工成成品.本文提出了一種在後續工藝路線確定后如何確定后續工藝尺寸的數學模型，並利用該模型成功地編制出了動態工藝尺寸設計的軟體，且用很多事例驗證了該模型的正確性.該方法可以應用於精密機械零件製造時的計算機輔助工藝過程設計及在線質量保證
  5. And the field of scientific research have been attached importance to research of subsoiling and develop of subsoiler, and gained considerable development, but subsoiling technology has not been extensive application, subsoiler has so many limitations too, and great resistance is prominent limitation. this dissertiation start with improving the status of resistance, optimizing parameter of structure, ploting structure graph of subsoiler by autocad, and constituting mathematical model of subsoiler resistance, finding out every affect factor of resistance, it is not only significant to optimize subsoiler, but to gain more precise value and parameter. and that it can detract the process of producing sample, experimentation and correcting, in addition to economizing time, saving resource and enhancing efficiency

    本文從改善深松鏟受力狀況、優化其結構參數以更好的滿足深松要求入手，利用計算機輔助設計（ autocad ）技術繪制深松鏟的結構圖形以利於其分析和設計，並通過對現存深松鏟的結構和受力分析，建立了深松鏟工作狀態的受力數學模型，找出了影響深松鏟受力的各個因素，不僅對深松鏟的優化有著重大的意義，而且可以得到更加精確的數值和參數，並減少了必須生產出樣機進行試驗、修正等煩瑣的過程，大大節省了時間，節約了資源，提高了生產效率。
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