varying velocity 中文意思是什麼
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The collapse which bloom ascribed to gastric inanition and certain chemical compounds of varying degrees of adulteration and alcoholic strength, accelerated by mental exertion and the velocity of rapid circular motion in a relaxing atmosphere, stephen attributed to the reapparition of a matutinal cloud perceived by both from two different points of observation, sandycove and dublin at first no bigger than a woman s hand
這是始而精神緊張，繼而又在鬆弛的氣氛下疾迅地旋轉這一劇烈的運動所造成的。斯蒂芬卻把它歸因於起初還沒有女人的巴掌那麼大的晨雲再次出現他們二人曾從不同的地點-沙丘與都柏林，目擊到那片雲彩5 。 -
Geophysicists had already cognizance of that the pervasive velocity anisotropy with varying degree in the mantle or the sedimentary rock of upper crust is an important physical property. almost all existed research works fasten on those transversely isotropic media with vertical or horizontal axis of symmetry ( ti ).,
地球物理學者已認識到從地幔到地殼上部的沉積巖存在著不同程度的各向異性，且對具有垂直或水平對稱軸的橫向各向同性介質（ ti ）有很多的研究。 -
By varying flow velocity and the concentration of hmi ( hg2 + ) in influent water and adding usual cations ( ca2 +, mg2 + ) or anions ( cl -, so42 - ) into raw water, the effects of hmi removal by wbaer and cations exchange resins from dk have been contrasted
試驗中通過改變流速（通過離子交換柱） 、進水中重金屬離子（ hg2 + ）的濃度以及向原水中引入天然水體中常見的陽離子（ ca2 + 、 mg2 + ）和陰離子（ cl 、 so42 ）等方法，比較了弱堿性陰離子離子交換樹脂和陽離子交換樹脂對飲用水中微量重金屬離子（ hg2 + ）的去除效果。 -
Then, as the substitute of the traditional pi controller, neuron adaptive psd controller is used to alternate the velocity loop of dc driver system, simulation results show that the super - shoot in new system is small and the performance in the way of anti - disturbance and anti - time - varying parameters are higher than the traditional pi controller and robustness of the dc driver system improved greatly, in addition, through analysis of the character of the neuron adaptive psd controller, the paper presents a neural network self - tuning control method for dc driver system in which the diagonal recurrent neural network is used to identify the plant to calculate the plant ' s sensitivity for psd controllers simulation results indicate that excellent static dynamic target was got with this control method and the performance of the system is improved greatly,
然後，應用單神經元自適應psd控制器改造調速系統的轉速環，代替傳統pi調節方式的轉速控制器。模擬表明，新系統在超調、抗負載擾動和參數時變方面性能優于的傳統的pi控制方式，系統的魯棒性增強。在分析單神經元自適應psd控制器特性后，本文提出用對角遞歸神經網路辯識控制對象，為psd控制器提供靈敏度參數，從而構成一神經網路自校正控制方案。 -
In the end, in view of the fact that boussinesq - type equations and the mild slope equations are deduced from different hypothesis conditions and behave differently in simulation of wave propagation, the numerical results of wave propagation effected by strong non - linearity are given by the nonlinear three - dimensional mathematical model which was established for the calculation of 3 - d wave particle velocity and wave pressure and suitable to small size waters of arbitrarily varying depth
最後，鑒于boussinesq型方程和緩坡方程是在不同的假設條件下推導而來，應用於描述近岸水域波浪的傳播變形時具有不同的特點。本報告根據作者所建立的可以對任意水深點流場與波動凈壓力場進行求解、適宜水深任意變化水域非線性波傳播的數學模型，提供了在較強非線性作用下波浪傳播的數值模擬結果。 -
Based on current forcecalculation of varying current velocity distribution and static analysis of mooting lines ' a new method of dynamic balance is proposed, which can makebfp to be vertical in submergence, and assure bfp to touch seabed in favorable position and insert into preconcerted depth successfully
通過分析平臺沉放過程中的受力，採用動態調平的新方法，可以使平臺在沉放過程中保持垂直，保證桶形基礎以良好的初始姿態觸底並順利地插入到預定的深度。 -
( 2 ) starting off with analyzing the forces affected on single dry solid granule on the roller screen, the relative slippage and slipping condition of granule at the tangential direction and axis direction of roller screen are discussed, and the average slipping conveyance velocity from feeding end to discharging end is given. the throwing conveyance of granule is discussed, the throwing coefficient of roller screen and its varying rule, and the concept of average throwing coefficient and its computing method are put forward, the starting condition and terminating condition for throwing motion of granule on the roller screen and the throwing conveyance velocity of granule are researched. the influence on throwing motion of granule by the rotating velocity of roller screen is discussed as well
（ 2 ）從筒式篩網上單顆干固相顆粒的受力分析著手，討論了顆粒在筒式篩網面上的切向相對滑動和軸向相對滑動及滑動條件，並導出了顆粒從進料端向出料端滑動運移平均速度；討論了顆粒的拋擲運移，給出了筒式篩網上的拋擲指數及其變化規律，提出了筒式篩網的平均拋擲指數的概念及計算方法，研究了筒式篩網上顆粒拋擲運移的產生條件和終止條件，以及顆粒拋擲運移的輸送速度；還討論了筒式篩網的旋轉角速度對顆粒拋擲運動產生的影響。 -
Based on the transfer - matrix method, the general expressions of equivalent four - terminal network parameters of varying section torsional horn are derived, the relations between frequency equation and both the rotational velocity amplification and that of the surface tangential velocity of stepped type torsional ultrasonic horn with transitional section of cosine - like type are obtained
摘要基於傳遞矩陣演算法，推導出了變截面桿扭轉振動時等效四端網路參量的一般表達式，研究了帶類餘弦過渡段階梯形變幅桿扭轉振動頻率方程與角速度放大倍數及外表面切向速度放大倍數等的關系。 -
( 2 ) with f varying, there exists a number fr which is about - 1 ( curvature, torsion and dean number have little influence on fr ), when f > fr, the maximum of the axial velocity is near the outside bent and the friction factor ratio increases with f increasing ; when f < fr, the maximum is near the inner side bent and the ratio increases with f decreasing ; when f = fr, the distributions of the axial velocity are similar to those of poiseuille flow and the friction ratio is about 1
（ 2 ）當f變化時，存在確定的數值fr （ fr在- 1左右。曲率、撓率和dean數對fr的影響很小） ，當f fr時，軸向速度最大值偏向外側，摩擦系數比隨f增大而增大；當f fr時，軸向速度最大值偏向內側，摩擦系數比隨f減小而增大；當f = fr時，軸向速度的分佈和poiseuille流近似相同，摩擦系數比約為1 。 -
Comparing the fitted expression with the established theory expression of the angular velocity, the equivalent viscous damping coefficient is gained. the closed form algorithm of the state space method is employed to solve the system dynamic equation with time - varying coefficients. the dynamic problem of a linkage mechanism with four joints is taken as example to show that the presented models and methods are correct and practicable
引入求解線性微分方程的狀態空間法，並對其求解時變系統運動微分方程的具體步驟進行了推導；在此基礎上將實測獲得的運動副等效粘性阻尼系數代入系統動力學方程，求解后獲得了考慮運動副阻尼的平面彈性四連桿機構的模擬結果；結果表明運動副的阻尼在一定程度上對振動具有抑制作用。 -
A hybrid migration method, named " fourier finite - difference migration ", is a post - stack depth migration scheme. the downward extrapolation operator is split into three operators : one operator is a phase - shift operator for a chosen constant background velocity, another operator is the well - known first - order correction term, and the third operator is a finite - difference operator for the varying of the velocity function. phase - shift downward extrapolation and finite - difference downward extrapolation preserves the advantage of phase - shift method and finite - difference method
傅立葉有限差分（簡稱ffd ）偏移演算法是一種疊后深度偏移演算法，其向下延拓運算元是一種混合運算元，包括三項：一項是處理常速的相移運算元，一項是一階相移修正運算元，最後一項是類似45度方程的有限差分運算元，用來處理劇烈橫向變速。 -
This paper presents a sufficient condition for the asymptotic stability and geometry - velocity stability of the time - varying discrete dynamic system
摘要對時變離散動態系統給出了判斷其漸近穩定和幾何速度穩定的充分條件。 -
2 ) forward modeling method of refraction first - break in lateral varying velocity media. for layered media, a new forward modeling method of refraction is presented. for more complex near - surface conditions such as mountain areas, a new improved ray tracing method based on shortest path assumption is studied, it has higher accuracy and faster computing efficiency than conventional ones. the method can be used for the forward modeling of complex near - surface media
而對于折射面起伏較大、低速層和折射層速度變化較大的復雜近地表情況，提出了一種改進的最短路徑初至波射線追蹤方法，該方法精度高，計算速度快，適用於任意二維復雜近地表介質（如山地）的初至折射波的正演計算。 -
Technology of pulse width modulation in varying - velocity motor
異步電機變頻調速中的脈沖寬度調制技術 -
Then, only a given curve satisfied by the conditions of import and outlet of vane wheel as its modular curve will neglect the middle varying processes of in vane wheel, which reflect microscope properties in some degree - flow properties in boundary layer. leading into the velocity - coefficient unifies the boundary layer and eular theory in the design process of vane, which extends the area of selection of vane ' s curves and provides a valuable object function for the optimization design of vane
那麼，僅憑一條預先給定的滿足葉輪出入口條件的曲線去來作為葉輪的型線，它必將忽略了這種除了葉輪出入口之外的中間變化過程，而這種中間變化在某種程度來說又反映出微觀特性? ?邊界層流動特性；速度系數的引入，它使邊界層理論和歐拉理論在泵的葉輪設計過程中得到統一；它使選擇葉片曲線的域圍拓寬；它也為葉輪的優化設計提供了一個很有參考價值的目標函數。
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