逆轉時間 的英文怎麼說
中文拼音 [nìzhuǎnshíjiān]
逆轉時間
英文
reversal time- 逆 : Ⅰ形容詞1 (方向相反) contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 (抵觸; 不順從) go aga...
- 轉 : 轉構詞成分。
- 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...
- 逆轉 : take a turn for the worse; become worse; deteriorate; set back; kick back; reverse; inversion; re...
- 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...
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It was the first time for china to win a grand slam final in any discipline and capped a breakthrough 12 months in which yan and zheng won two other doubles championships, at hobart and hyderabad last year
北京時間1月27日,鄭潔晏紫在2006年的澳大利亞網球公開賽女雙決賽中以2 : 1逆轉頭號種子雷蒙德The equations of motion governing the axisymmetric elastic deformation of finite orthotropic cylindrical shells, involving the effect of transverse shear and rotational inertia, are derived. by applying the reverberation method, the displacement and the resultant forces of the shell in the phase space are expressed. then the transient waves in the finite orthotropic cylindrical shell subjected to the axisymmetric impact are obtained by using inverse laplace transforms. furthermore, the transient solutions are decomposed to the generalized ray integrals and computed numerically
分析了計及剪切變形和轉動慣性的有限長正交異性圓柱殼中彈性瞬態波的傳播問題,採用回傳矩陣法,在相空間中給出了位移和內力的表達式。再利用laplace逆變換,得到正交異性圓柱殼受軸對稱沖擊作用時彈性瞬態波解,然後將其分解為若干廣義射線積分之和,並用數值方法求解之。Highly susceptible to outside shocks. as our economy is also subject to cyclical fluctuations, there is all the more reason for us to provide against a rainy day when the economy is strong, or else we will have too little room to introduce relief measures for our community during a downturn
由於香港是一個外向型經濟體系,很容易受到外來沖擊,加上經濟有周期性,所以經濟向好時,我們要積谷防饑,否則經濟逆轉時,我們就沒有空間推出措施,利民紓困。In this dissertation, we firstly prove that any dirichlet problem is indeed equal to a voltages problem of networks. we give five solutions to dirichlet problem in two dimensions ; among these five solutions, we prove that the iteration solution and the solution of relaxations are exponential convergence, then we estimate their respective convergence rates ; secondly, we discuss random walks on general networks, prove that there is an one to one correspondence between networks and reversible ergodic markov chains ; thirdly, we give probabilistic interpretation of voltages for general networks : when a unit voltage is applied between a and b, making va = 1 and vb = 0, the voltage vx at any point x represents the probability that a walker starting from x will return to a before reaching b ; furthermore, we study the relationship between effective resistance and escape probability : starting at a, the probability that the walk reaches b before returning to a is the ratio of the effective conductance and the total conductance
本文證明了任何邊值的dirichlet問題都可轉化為求解電路電壓的問題:給出了計算平面格點上dirichlet問題的5種方法:證明了迭代法和松馳法都是指數收斂的,並分別給出收斂速度的估計;討論了一般電路上的隨機徘徊,驗證了電路與可逆的遍歷markov鏈是一一對應的;給出了電路電壓的概率解釋:當把1伏電壓加於a , b兩端,使得v _ a = 1 , v _ b = 0時,則x點的電壓v _ x表示對應的markov鏈中,從x出發,到達b之前到達a的概率;進一步地,給出了逃離概率與有效電阻之間的關系:從a出發,在到達b之前到達a的概率為有效傳導率與通過a的總傳導率之比。The chinese word wuli was first examined in literature of the warring states period. according to its wide use in ancient china, the word refers in general to the principle of all objects or the natural laws. in ancient times the meaning of wuli is similar to physics in the west. the translation of the english word physics was made some alterations in the introduction of western science during the ming and qing dynasties. from the 17th to the early 19th century, some chinese books on physics translated by protestant missionnaries were annotated and translated in japan. after the sino - japanese war reversed the flow of knowledge between china and japan. from the second half of the 19th century to the early years of the 20th century, the translation of the english word physics was defined early or late in japan and china. now the range and object of physical research are continually changing along with the rapid development of modern physics
「物理」一詞,在中國古代最早見于戰國,此後在各種典籍中被廣泛使用,其含義泛指萬物之理與自然規律,這種含義與西方古代「物理」一詞的含義相近.明清時期西學東漸, 「物理」一詞的翻譯幾經變化.古代日本的科學在相當程度上受到中國的影響, 17世紀至19世紀上半葉來華傳教士譯述的物理書籍也在日本被注釋翻譯.甲午戰爭后,中日兩國之間科技交流的態勢發生了逆轉. 19世紀下半葉至20世紀初,日中兩國「物理」一詞的譯名先後確定.隨著現代物理學的迅速發展,物理學研究的范圍和對象又在不斷地變化There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not
首先引入開關函數概念,建立了正弦脈寬調制( spwm )逆變器供電異步電動機,考慮主磁路飽和時的變頻調速系統整體數學模型,模擬系統的低頻振蕩;其次從逆變器-異步電動機系統能量轉換角度出發,提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c ( f _ c為逆變器載波頻率)來判定系統是否出現低頻振蕩;最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。Xsj double helix between plasma machines using one pair of bianjing and change the pitch rotary screw opposite direction when the squeeze between the fibre and fibre through the medium emit heiye shorten bleaching time and the number of bleaching, the purpose of achieving savings in water, and more taiwan connections against washing and the results better
Xsj雙螺旋擠漿機利用一對變徑和變螺距的螺旋反方向旋轉時產生的擠壓使纖維與纖維之間的黑液通過介質排出,縮短漂白時間和漂白次數,達到節約水資源的目的,多臺串連逆流洗滌,效果更佳。Mass spectrometry of synthetic hw - ma and rgd - hw are in full agreement with those speculated theoretically, which proves the success of peptide synthesis and refold. on isolated mouse phrenic nerve - diaphragm preparations, hw - ma can block the neuromuscular transmission in 35 minutes or so ( l 10 - 5 g / ml ), its biological activity shows 73 % decrease comparing with biological activity of native hwtx - i. it proves t hat the protein engineering of synthetic chimera hwtx - i has gained success to some extent, although it did not achieve our expectations. thus it proved that hwtx - i can be using as natural scaffold for protein engineering. and also emphasized the importance of " local stereo circumstances " of activity site when the foreign activity site was transferred into a natural scaffold
濃度為1 / 1059 / ml的hw一ma突變體能可逆阻斷小白鼠隔神經書高肌的接頭傳遞,阻斷時一間為35min左右,與天然hwtx一i比較,生物學活性下降3一4倍,說明合成的突變體改造獲得了一定的成功,盡管與我們預期的目標有一定的差距,從而證明hwtx一i可以作為蛋白質工程研究的天然分子骨架,同時也強調了往天然分子骨架中轉移外源活性位點時維持活性位點「局部立體環境」的重要性。The data processing system further includes a convoluted inverse transforming means for inversely transforming the discrete function in a second - variable - domain back to the time domain at a second sampling frequency for converting t he input data to a set corresponding data sampled at the second sampling frequency
此資料處理系統也包含一個旋積的逆轉換裝置,用來對以第二個變數為定義領域的離散函數,逆轉換回以第二個取樣頻率為頻率及以時間為定義領域的函數,也就是將資料轉換成以第二個取樣頻率所取樣的資料。Specific issues examined are : compensation for the variation of the stator resistance, the offset error of the dc bus voltage, the voltage error generated by the forward voltage drop the dead time of the switches, improvement of the steady state performance, and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis
定子電阻變化,直流母線電壓漂移,開關器件反向相電壓降、逆變器死區時間引起的電壓誤差的補償,提高系統穩態運行性能以及永磁同步電機直接轉矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉矩的快速響應是直接轉矩控制演算法的一個卓越的性能。A zero - voltage starting method is brought forward which switch the starting from separate exciting to self - exciting successfully ; pll ( phase lock loop ) technology is employed to realize the frequency tracing and constant phase angle control ; igbt driving and protective circuit suitable for parallel inverter is developed, which successfully solve the problem of time compensating and overlapping regulation for the driving signals ; a novel and practical over - voltage protective method for parallel inverters is presented which effectively avoid the possible over - voltage destroy to the inverter. xu haiwen ( power electronics and electric driving ) directed by senior engineer peng yonglong
提出了一種零壓啟動的他激轉自激方法;通過採用鎖相環技術實現了逆變器工作頻率的自動跟蹤和容性逆變角度的恆值控制;設計了適用於並聯諧振型逆變器的igbt驅動與保護電路,解決了驅動信號的時間補償以及重疊角的可調問題;提出了一種新穎、實用的逆變器過壓保護方法,有效地解決了並聯型諧振逆變器過壓保護這一難題。According to the equatorial coodinate position of the galactic centre being observed by astronomist, it is determined that the position of solar system on galactic orbit plane, the time of the solar system and the earth revolution around the galactic centre for a circle, may be 220 ma
以目前太陽系在銀道面上的位置為起點,按照時間倒退,順時針逆轉做圖,確定過去不同地質年代太陽系在銀道面上的位置。The residual marks in the livingroom are cold and heavy symbols of time that represent some image in one ' s recall
客廳里殘留的痕跡是一些冰冷而沉重的、不可逆轉的「時間」符號,塗寫著一個人「回憶」中影像。Sadly for liverpool there simply wasn ' t enough time to stage a comeback to rival their famous win over milan two years ago in istanbul
悲傷的是利物浦根本沒有足夠的時間去上演兩年前在伊斯坦布爾完成的著名的戰勝米蘭的大逆轉。There can always be a moment of magic or misjudgement in any final that proves the tipping point, and the return of joe cole and ( hopefully ) arjen robben means the conjurors who have been absent most of the season can wield their wands
在任何決賽中總會有神奇或者誤判的時刻而另比賽發生逆轉,而喬科爾和羅本的回歸意味著整個賽季中大部分時間都不在的魔術師們,現在可以揮棒上陣了。The geologic record also shows that the strength of the magnetic field varies widely in time, and fluctuates wildly during field reversals, sometimes dropping to zero gauss strength ; ie : the field vanishes, disappears
地質記錄也表明磁場強度在時間上普遍變化,在磁場逆轉期間廣泛波動,有時降到零高斯強度;也就是:磁場消失不見了!Prolonged exposure to direct sunlight or fluorescent light causes a photochemical reaction that will adversely affect the beer ' s taste and create an offensive odor
長時間的光照會產生光化學反應,使啤酒的味道發生逆轉並產生異味。It s a life - long commitment and you will never be able to go back on your promise unless time and river tides back
這是一生一世的承諾,答應了就永遠不能改變,除非時間逆轉,河水倒流,人死復生。Three kinds of the usual methods of rotor flux estimation are compared and analyzed, and the method of rotor flux estimation based on the voltage model is studied in detail. and the output phase voltage is reconstructed by means of the dc - bus voltage and the switching states of the inverter, the effect of the dead time and saturating voltage - drop of the switches on flux estimation is discussed. and the method of synchronizing instant speed identification is also studied deeply
本文對三種常用的轉子磁鏈觀測方法進行了對比分析,在此基礎上著重研究了基於電壓模型磁鏈觀測方法,分析了利用直流母線電壓和逆變器三相開關管的狀態進行輸出電壓重構方法,討論了死區時間和開關管飽和壓降對磁鏈觀測結果的影響,深入研究了同步瞬時轉速辨識方法。In people who have more severe and longstanding diabetes, the disease may no longer be reversible, no matter how much weight is lost
可能對于那些患病時間較長,癥狀較嚴重的患者,也許無論他們減掉多少體重,疾病的癥狀都不會逆轉。分享友人