時間前差 的英文怎麼說

中文拼音 [shíjiānqiánchā]
時間前差 英文
forward time difference
  • 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...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 前 : Ⅰ名詞1 （在正面的） front 2 （次序在先的） first; top 3 （過去的; 較早的） ago; before; preceding...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  1. At the period just preceding the advent of bartleby, i had two persons as copyists in my employment, and a promising lad as an office-boy.

    就在巴特比光臨之前的一段時間里，我已經僱用了兩個人任抄寫員，一個有出息的孩子當聽差。
  2. A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time

    本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算，多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序，驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較，可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率，縮短了計算時間，因此為后續計算打下了良好的基礎
  3. In all the 38 cases there were " excellent " outcomes in 17 cases " good " in 19 eases, " fair " in 0 case, and " poor " in 0 case in the acute traumatic extravasated blood of the ankle group

    結果全部隨訪，時間6 ~ 52個月，平均28個月，無骨折脫位的急性創傷性踝關節積血組：優17例，良1例，可0例，差0例；踝前撞擊綜合征組：優12例，良6例，可2例，差0例。
  4. Saying that time races along at one second per second has as much scientific weight as the utterance of a zen koan

    說時間以每秒一秒的速度前進，與禪宗公案中的妙語相較，科學的分量其實沒有什麼差異。
  5. With only a few years of application in china, multimedia teaching has unfortunately been widely misconceived as a reliable indicator for measuring how well education is modernized. local schools rush to locate funds to purchase multimedia equipment and build multimeia classrooms, contributing to further development of an unhealthy trend

    我國開展多媒體教學僅有幾年的時間，正因為對多媒體教學認識的偏差，把其看成是教育現代化的一種標志，所以各單位紛紛申請巨額資金，購置多媒體教學系統，裝配多媒體教室，出現了多媒體「熱」的怪現象，而且目前這種現象有蔓延的趨勢。
  6. Besides, of the several algorithms those have been proposed in the literature for solving the transportation problem, previous computational results indicated that the primal algorithm ( modi method ) is more efficient, so we have compared the amedv versus the modi method. because very little experimentation was carried out on algorithmic techniques used in the codes of amedv, we have also performed a number of runs that test the overall solution time as the number of significant digits in each of the parameters is varied

    因為元素判別值分配法是運輸問題引發出的求解新方法，並且階石法是目前解運輸問題的較快速解法，所以特別針對運輸問題通過若干組有代表性的檢驗數據進行數值測試，在實際問題中對比元素判別值分配法與階石法的演算法執行時間，研究兩對演算法執行效率上的差別，並分析差別產生的原因。
  7. In a comparison of nephron - sparing surgery and radical nephrectomies, the tumor size, operative time, blood loss, hospital stay, and preoperative and postoperative serum creatinine levels were analyzed

    比較腎臟保留手術和根除性腎臟切除手術的差異，我們針對腫瘤大小、手術時間、血液流失程度、住院日數、術前和術后的血清肌酸酐值均加以分析及討論。
  8. The frontal structure of longmenshan in the west of sichuan is very complex, showing intense structure deformation in overthrust belt, high structure amplitude, steep stratigraphic dip, developed fault blocks, complex seismic wave field, frequent change of lateral velocity, and poor image of post - stack time migration processing

    摘要川西龍門山前緣構造非常復雜，逆掩推覆構造帶構造形變強烈，構造幅度大，地層傾角陡，斷塊發育，地震波場復雜，速度橫向變化大，常規疊后時間偏移處理成像效果較差。
  9. This index then is decided to contain the fluctuation of both income and consumption instead of focusing only on one factor, and it should be measured by the squared resid of the time serial simulation of variables, rather than commonly used group variations or other indirect indices, which are quite different from formal researches. besides, the accuracy of the ecm model will be greatly underlined

    在計量方法上，筆者分析了各種方法的利弊，最終放棄了前人常用的組間方差法、間接變量法和主觀報告法，而使用了更切合經濟含義且更具相關性、更客觀的殘差平方（對變量進行時間序列模擬后得到，稍後會作取對處理） 。
  10. That means the controlled temperature al1ow waving in a range in a period. when the change of the temperature indoor is out of the range we enacted, the system begin to regulatc. compensate the windage last time leave behind } before decide the heatsupply parameter for the next time

    即允許被控室內溫度在一段時間內存在一定幅度的波動，當室溫變化幅度超過設定值時系統開始調節，在確定下一時間段的供熱參數之前對上一時間段的遺留偏差在短時間內給予補償。
  11. The use of the state - of - the - art laser facility makes it possible to create conditions of the same or similar to those in the astrophysical processes. the introduction of the astrophysics - relevant ideas in laser - plasma experiments is propitio us to the understanding of the astrophysical phenomena. however, the great difference between the laser - produced plasmas and the astrophysical processes makes it awkward to model the latter by laser - plasma experiments. this paper addresses the physical backgrounds for modeling the astrophysical plasmas by laser plasmas, connecting these two kinds of plasmas by scaling laws. thus, allowing the creation of experimental test beds where observations and models can be quantitatively compared with laser - plasma data. special attentions are paid on the possibilities of using home - made laser facilities to model astrophysical phenomena

    採用當前最先進的激光裝置與物質相互作用，可以獲得與天體物理過程中相同或相似的條件，並進而開展利用激光等離子體模擬天體物理現象的實驗.然而，激光等離子體為微米空間尺度、納秒存活時間，而天體物理對象則為宇宙學的極大的時間與空間尺度，對在物理上和實際操作上將這兩種表面上存在巨大差異的物理過程對應起來從而利用激光等離子體研究天體物理過程的可能性進行了討論，特別是對利用國內的激光裝置開展模擬實驗的可行性進行了討論
  12. Follow - up studies using the molecular clock produced estimates for this split that varied significantly, ranging from as old as one billion years ago to as young as just before the cambrian period

    后來使用分子時鐘來估算分支時間的研究結果，差異都很大，可能早至10億年前，晚至寒武紀即將開始時。
  13. The natural periods of formal six modes were advanced researched, the floor panel is assumed to be elastic, contrast with the results, first time it ' s found that the third natural period has a small affection considering sshsti. when the axial loads on piles are considered, the other periods in the formal six modes have relative percent variation from 30 % to 60 %, and the relative percent changes small considering different ground

    對比分析發現，體系前六階振型中，考慮樓板彈性假定的地基基礎與結構共同作用對第三振型固有周期基本不存在影響，當地基中的群樁考慮軸力時，其它固有周期增大在30 %至60 %之間，且不同地基之間的差異變化較小。
  14. First of all, we bring forward the basic project of tadil, which adapts to combined operations. it is suggested to use tdma ( the abbreviation of time division multiple access ) as the working pattern and utilize the concept of mobile ad hoc network to construct the data link network. aiming at the impact of time delay on data link and the characteristic of cooperative combat under the command of director aircraft, this thesis applies a kind of kalman filtering algorithm in polar coordinates to compensate the error of time delay, and then does the transformation of target motion parameters to obtain the current information of target

    本文結合空軍裝備部某「十五」預研課題，圍繞著戰術數據鏈、多機協同多目標攻擊、超機動攻擊、空對地攻擊這四個方面展開了一系列的研究工作:本文首先給出了適應三軍聯合作戰的戰術數據鏈系統的基本方案，建議採用時分多址的工作模式，並利用移動自組織網路的概念構建數據鏈網路，同時針對數據鏈傳輸信息的時間延遲特性和指揮機指揮下的多機協同作戰特點，應用一種極坐標系下的卡爾曼濾波演算法對該傳輸延遲誤差進行補償，並在此基礎上進行目標運動參數的轉換，以獲得目標相對于某無人機的當前運動信息，且利用模擬驗證了方法的有效性。
  15. The objectives are to minimize a linear function of total completion time and total variation of completion time, a linear function of total waiting time and total variation of waiting time, a cost function based on earliness, tardiness, window size, window location, and a linear function of the due date, the earliness and tardiness for all jobs

    目標函數分別為極小化完工時間和與完工時間偏差和的線性組合，極小化等待時問和與等待時間偏差和的線性組合，極小化提前時間、延誤時間、最早交貨期及窗口長度的加權和，極小化提前時間、延誤時間及公共工期的加權和。
  16. Here we managed to make cultured mice peritoneal macrophages be directly influenced by oligochitosan, and be stimulated by ifn - r before oligochitosan added, then measured the changes of gene transcription and translation level of both il - 1 and imf - a, respectively by methods of relatively quantitive rt - pcr and elisa. first, rt - pcr results showed that 18 hours was the most effective time and 40ug / ml was the most effective concentration of oligochitosan, then by the same method, confirm that 4hours is the most effective time and loou / ml is the most effective concentration of ifn - r stimulating. because ifn - r can enhance il - 1 and tnf - a gene expression of macrophages alone, so add ifn - r to microphages alone for 22 hours, then examined by rt - pcr, the results showed that il - 1 and tnf - a gene expression have no remarkable difference compared with the blank contrast group

    此外，由於ifn y單獨作用也可促進兩種細胞因子基因表達，故在巨噬細胞中加入ifn y單獨作用22h ，再經阿一pcr檢測，發現加ifn y的實驗組細胞的幾一lp和tnf a基因轉錄水平與空白對照組相比較無顯著性差異，可見，殼寡糖和ifn v對巨噬細胞il lp和tnf一口基因轉錄水平的影響在作用時間上無一致性，在殼寡糖作用最適時間時，僅受ifn y刺激的巨噬細胞il lp和tnf q基因轉錄己下降至刺激前水平，因此可以認為， ifn y的加入僅起到對巨噬細胞預刺激使之處于敏感狀態的作用，有利於增強殼寡糖對巨噬細胞的作用。
  17. The first part introduces the meaning that we establish bci. the second part outlines the bci history and introduces the present condition in our country. a shortcoming hi the bcis is that they do n ' t take into account the time difference of different indexes

    第二章介紹了景氣指數編制的歷史，並對我國目前的有關景氣指數作了簡單介紹，我國目前眾多的景氣指數中，一個很大的缺點就是沒有對指標進行時差劃分，我們解決了這一問題，在北京市投資景氣指數的各指標中進行了時間劃分，編制了較為理想的景氣指數。
  18. As i have indicated, there are weak solutions at present for large space - time windows

    如我表示的那樣，在較大的空間?時間誤差帶條件下目前有一些較薄弱的解決方案。
  19. With the thorough research on these and computer ability increasing quickly, people are paying more and more attention to relational numerical study. the mostly discussion is how to numerical simulate, concering error estimate in long - time, the existence of approximate attractor, well - posedness of solution and numerical solution and dimension estimate and so on, now there are much study [ 5 ], [ 15 ]. spectral method is important numerical method, but it is very hard so that research is a less

    隨著對它研究的深入和計算機能力的迅速提高，與之相關的數值研究也越來越被人們關注，這方面討論的主要是對原系統如何進行數值模擬的問題，涉及到大時間誤差估計，近似吸引子的存在性，穩定性，收斂性及其維數估計等諸多問題，目前已有很多工作。
  20. With compensation of signal ’ s time delay from different radiating element by phase shifters, phased - array antenna can control array beam easily. because there are no mechanical devices for rotating beam, the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters. it improves the tracking velocity of antenna towards the object, and becomes the development trends of weapon system antennas

    相控陣天線利用移相器補償信號到達輻射單元時間的差異，從而控制波束方向;天線沒有機械旋轉問題，只需改變移相器的設定值，波束便可以在毫秒級內掃描其覆蓋空域內的任何地方，提高了天線對目標的跟蹤速度，是目前武器系統天線的發展方向。
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