非直達線 的英文怎麼說

中文拼音 [fēizhíxiàn]
非直達線 英文
indirectroute
  • : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
  • : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
  • : Ⅰ動詞1 (暢通) extend 2 (達到) reach; attain; amount to 3 (通曉; 明白) understand thoroughly...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 直達 : through; nonstop
  1. Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model

    第二,討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表式和對稱不穩定的判據,發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大,這有利於對稱不穩定的發生。第三,採用f平面、靜力平衡、濾聲波模式,討論了中尺度垂環流性攝動分析及演變方程。
  2. Usually, hpm devices working in the high current and large field amplitude state, after the field reaches saturation, the nonlinear effects will become extremely strong so that the intrinsic nonlinear phenomena ( for example limit cycle oscillation and chaotic behavior ) of the system occur. these nonlinear behaviors directly influence the output characteristic of the devices

    在通常情況下,高功率微波源器件都工作在大電流和強場工作狀態,尤其在場到飽和以後,系統的性效應將變得常明顯,性系統所特有的一些現象(如,極限環型振蕩和混沌行為)將出現,這些性現象接影響器件的各種輸出特性。
  3. The main conclusions are as follows : first of all, applying the conception of flux lines to the theory of electromagnetic field makes abstract electrostatic field visible and intuitive

    主要內容和結論可歸納如下:首先,電磁場理論由於引入了力的概念,從而使得常抽象的靜電場獲得了形象化的觀表
  4. The analysis on the test result shows that the temperature distribution in cfst members caused by solar radiation is nonlinear, and the nonlinear character is most evident when center point of concrete gets its lowest temperature. the temperature of the center point is affected by various directions, especially the strong potential. in the side exposed to the sun in the afternoon, apart from the center point, temperature varies laggardly when the point of concrete in the same series is more close to the center

    結果表明,日照作用下截面的溫度場為均勻場,混凝土中心的溫度到最小值時,截面溫度場的性特性最明顯,圓心點的溫度受各個方向溫度的共同作用,更多地受到強勢方向的影響;下午時處在向陽面的各系列,同一系列上混凝土各點溫度變化隨徑縮小趨緩,越靠近圓心,溫度變化越緩和,對外部環境(包括氣溫與日照)的影響呈滯后現象越明顯;而在下午時處在背陰面的各系列除圓心點外,同一系列上越靠近圓心的混凝土測點,溫度變化越緩和。
  5. Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly

    但是高性能的交流調速系統實現很困難,這是因為交流電機是多變量、強耦合的性系統,不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題,其基本思路? ?應用坐標變換將三相等效為二相,實現定子勵磁電流分量與轉矩電流分量之間的解耦,到對交流電機磁鏈與電流分別控制的目的,交流電機等效為流電機實現高性能調速。隨著電力電子技術的進步,計算機技術飛躍發展,高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中,促進矢量控制迅猛發展,日趨成熟。
  6. In this paper, we will more deeply research on the base of the works, the first part, we give the summarize for the condition and the significance. the second part, we give the preparation knowledge to the whole paper ; the third part, we research the lower and upper bound of the generalized hamming weights for the linear codes ; include d ( r, n, k ) bound, the finite sum representation of the lower and upper bound function of generalized hamming weights for linear codes, generalized griesmer bounds ; the 4 - th part, research the definition, the property of the r - th generalized weights for the non - linear codes and non - linear constant codes, and give the expression of the generalized weight of binary ( n, m, d ) non - linear codes ; the 5 - th part, research the weight hierarchy of linear codes and non - linear codes, for example, necessary condition and sufficient condition, the 6 - th part, we research the expression of the r - th generalized hamming weights of reseaval classes codes

    本文在已有的基礎之上作了進一步的探討,第一章綜述了廣義hamming重量的現狀和意義;第二章給出了全文的預備知識;第三章研究了性碼的廣義hamming重量的一些上下界;包括d ( r , n , k )界,上下限函數有限和表式,廣義griesmer界;第四章討論了性碼及性等重碼的廣義hamming重量的定義、性質,給出了2元( n , m , d )性碼的第r廣義hamming重量的表式;第五章研究了性碼、性碼的重量譜系;第六章給出了幾類碼的廣義hamming重量的表式,這些碼包括和碼( directsumcodes ) 、笛卡爾積碼( cartesianproductcodes ) 、張量積碼( tensorproductcodes ) 、延長hamming碼。
  7. Soil springs are used around the pipe including vertical, lateral and axial soil springs to consider the interaction between the pipeline and the surrounding soil. the pipe segment near fault that usually suffers large deformation is modeled with a plastic shell element in order to consider the effect of local buckling and section deformation. to reduce the calculating time of the whole model, an equivalent spring proposed by the author is applied at two ends of the shell model

    為了解決現有的殼單元方法需要大量計算機時的缺點,本論文首次從理論上把離斷層較遠管土之間相對變形較小的管子段部分的變形等效為一個性彈簧,將此等效邊界引入到有限元模型中,使得模型中的殼單元部分主要用來分析我們所感興趣的在斷層附近發生大變形的管段,從而到節約計算時間的目的。
  8. Against two kinds of nonlinear friction observers, the analytic expression of zero ve - locity interval t based on the nonlinear model of brushless dc motor system is deduced in this paper. simulation results indicate that the system performance at low velocity can be im - proved effectively using the friction observer based on coulomb friction model

    針對兩種不同的性摩擦觀測器,推導了基於無刷流電動機性模型的零速度時間間隔腡解析表式,通過模擬證實,利用基於庫侖摩擦模型的摩擦觀測器可以有效地改善系統的低速控制性能。
  9. Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco - elastic dampers in cable - stayed bridges is investigated by joining the center difference method and the state space strategy. both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. the space nonlinear vibration equations of the cable - damper system are derived, and a new hybrid method for solving the cable - damper system is presented by combing the newmark method and pseudo - force technology

    綜合考慮了拉索抗彎剛度、垂度的影響,研究了粘彈性阻尼器對斜拉橋拉索的空間振動控制,聯合中心差分方法及狀態空間法,得出了拉索麵內、外振動各階模態可能到的最大阻尼比及相應的最優阻尼器系數,並對斜拉橋拉索的阻尼器設計提出了參考建議:考慮拉索抗彎剛度、垂度及幾何性,導出了索-阻尼器系統的空間振動性方程組,結合newmark方法及偽力( pseudo - force )方法,創新地提出了求解性方程組的雜交方法,根據拉索-阻尼器系統的阻尼特性,在各種荷載作用下,對索-阻尼器系統的性瞬態振動響應進行了研究,從系統響應的角度更加接地驗證了阻尼器的控制效果。
  10. In chapter 3, the non - linear equation was linearized with the jacobi matrix, and then the linearized equation was transformed into fixed frame to analyze the stability problem with eigenvalue method ( on - ground or hovering ) or floquet theory ( forward flight ). meanwhile, the equation was perturbed by sweep frequency excitation from steady state to get transit decay of lag response which was then transformed into fixed frame with a numerical fourier coordination transformation ( fct ). the fixed frame response along with the body response was analyzed via an fft to determine modal frequencies

    然後,在穩態響應的基礎上利用雅各比矩陣對性方程進行了化,化后的方程利用多槳葉坐標變換轉換到固定系下后,利用接特徵值分析(地面、懸停)或floquet理論(前飛)對系統進行了穩定性分析;同時,對系統進行了瞬態響應分析;在系統到穩態的基礎上進行掃頻激勵,用fft變換求得系統頻率,進而用移動矩形窗方法分析得到系統的阻尼。
  11. This is to say, pu composite hollow fiber membranes pore size can become large with transmembrane pressure increasing, and can recover completely with transmembrane pressure reverting to original pressure at a specification condition. from the hagen - poiseuille equal ion, pu composite hollow fiber membrane pore radius magnification was calculated. in our experiment, the variation of membrane pore radius attained to much six times larger than the primitive membrane pore radius

    根據一般變形膜的純水通量一壓力差的關系,首次提出了孔徑變化分離膜的純水通量一壓力差的曲關系,並根據hagenf公式,理論上計算出了幾種pu復合中空纖維膜最大變形時的膜孔徑為原始膜孔徑的倍數,最小膜孔徑變化也到原始孔徑的一倍多,最大膜孔徑變化到原始孔徑的六倍多。
  12. This model is formulated as a non - linear state - space representation of helicopter flight dynamics, incorporating with blade element unsteady aerodynamics, a finite state dynamic inflow wake model, and flapping / lead - lag blade dynamic model. the formulation of the coupled rotor and fuselage equations enables the use of common solution techniques for trim and linearization in arbitrary steady flight condition as well as control response calculations

    本項研究針對新機研製過程必須解決的品質評定、飛控系統設計等問題,按照ads - 33軍用品質規范的要求,建立了一個較完整的升機性的、具有狀態空間表形式的飛行動力學模型,進行了模型驗證工作,並以某樣例升機為例,計算了ads - 33品質規范( 3
  13. Wavelengths or scales of surface heterogeneity are less than 20km. simulation results show that cbls do reach a quasi - stationary state correspondent to specified surfaces, after a long enough evolution. in this transition process and after that, horizontal statistics, i. e. mean potential temperature and vertical heat - flux, show profiles little differences to those over homogeneous flat surface. main effect of surface heterogeneity is to increase kinetic energy in cbl and the increase concentrates in the direction of surface heterogeneity. the time of cbl spent to reach its first peak of mean kinetic energy,

    模擬結果表明,在充分長的時間后,邊界層到一種適合於地面條件的準定常態。這種準定常態和向其過渡的過程中,水平平均的邊界層廓性質,如平均位溫廓熱通量廓等幾乎與平坦均勻地面的結果相同,或差異極小。地面均勻性的主要作用是使邊界層動能增大,並以地面均勻性變化方向的動能增加為主。
  14. Utilizing backstepping procedure, general expression of control strategy for hvdc converters is acquired. the control strategy can restrain the nonlinear uncertainty through injection of nonlinear damping terms in virtual controllers. the proposed decentralized adaptive control scheme guarantees that all the signals in the closed - loop system are bounded in the presence of high order interconnections and bounded disturbances

    設計中引入自適應性阻尼項來抑制系統性不確定參數和未知有界干擾的影響,同時採用反演設計方法來克服控制器設計的復雜性,最後獲得高壓流輸電系統換流站的分散魯棒自適應控制策略的一般表式,並提供了整個系統的穩定性證明。
分享友人