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曲线过渡
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  curved transition
     In this paper, dielectric waveguide branching directional coupler with curved transition sections is investigated by the method of multimode network. The coupling problem is analyzed from viewpoint of the scattering of incident surface waves by the nonuniform dielectric structure as a whole.
     本文用多横网络的方法,从表面波对非均匀介质结构散射的观点研究了具有曲线过渡段的介质波导分支定向耦合器的耦合问题。
短句来源
     The coupling characteristics of the coupler are calculated with a particular attention directed to the effect of radiation due to bending of the curved transition waveguides and other discontinuities on the performances of the coupler.
     着重讨论了曲线过渡波导及其它不连续性所产生的辐射对耦合器性能的影响。
短句来源
  “曲线过渡”译为未确定词的双语例句
     Coupling of Fiber-associated with an S-shaped Transition Strip Waveguide
     光纤与S型曲线过渡的条波导的耦合
短句来源
     A linear fitting algorithm is applied to the frequency response of a 10-order high-pass FIR filter with 10 kHz sample rate and a transition band from 800 Hz to 3 800 Hz.
     对采样率为10 kHz,过渡带为800 Hz至3 800 Hz的10阶FIR高通滤波器幅频响应曲线过渡带局部进行线性拟合。
短句来源
     RESEARCH ON HIGH GRADE HIGHWAYS AND STREETS REASONABLE TYPE OF SUPERELEVATION RUNOFF——Introducing a Curve Transition of Superelevation Runoff Longitudinal Profile
     高等级道路弯道超高缓和段合理形式的探讨——谈超高缓和段立面的曲线过渡
短句来源
     The cubic algebraic curves (the Bezier curve and B style curve, etc belong to the parameter curve) is apter to realize the curve transition and fitting to dispersed data than the cubic parametric curves.
     三次代数曲线比三次参数曲线(Be'zier曲线和B样条曲线等均属于参数曲线.) 更容易实现曲线过渡及对离散数据的拟合。
短句来源
     The author indicates a concept of“a curve transition”for superelevation runoff longitudinal profile, and presents“parabola method”and“a sine curve method”for raising design quality of supcreleva- tion runoff.
     本文提出了超高缓和段立面的“曲线过渡”的概念,具体提出了“三次抛物线法”和“正弦曲线法”,旨在提高道路弯道超高缓和段的设计质量.
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  相似匹配句对
     curve
     曲线
短句来源
     Construction Method of Transition Curve Based on Metaball Technique
     基于Metaball的过渡曲线
短句来源
     The Transition Curve of Involute Tooth Profile
     渐开线齿廓的过渡曲线
短句来源
     Multiresolutiou Curves
     多分辨率曲线
短句来源
     The Electronegativities of Transitional Elements
     过渡元素电负性
短句来源
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  curved transition
The coupling of surface waves by two crossed dielectric slab sections with curved transition waveguides is investigated by the method of staircase approximation.
      
The scattering characteristics of the crossed waveguides are calculated with a particular attention directed to the effect of radiation due to bending of the curved transition waveguides on coupling properties of the structure.
      
Such plateaux correspond in the Lineweaver-Burk re presentation to a long smooth curved transition between the two pseudo-linear sections.
      
The curved transition of the smaller to the larger pipe is an area that is very susceptible to cracking and mortar loss.
      
The model also produces an endogenous S-curved transition from fossil-fuel energy sources to carbon-free energy sources over the coming two centuries.
      


Xijiang (West River) is the largest river in the south of China, and Modaomen, the main river-mouth of Xijiang is the largest one of the eight distributary mouths in the delta of Zhujiang (Pearl River) , It is an estuary.The estuary sediment is mainly terrigenous detritus carried down from xi-jiang. The spatial distribution of the sediment is controlled by the separation of flow of the run-off and the tidal current, and influenced by the cross-section gradient of the water surface.So the coarser sediment is...

Xijiang (West River) is the largest river in the south of China, and Modaomen, the main river-mouth of Xijiang is the largest one of the eight distributary mouths in the delta of Zhujiang (Pearl River) , It is an estuary.The estuary sediment is mainly terrigenous detritus carried down from xi-jiang. The spatial distribution of the sediment is controlled by the separation of flow of the run-off and the tidal current, and influenced by the cross-section gradient of the water surface.So the coarser sediment is at the eastern part and the finer one at the western part, together with intersection of the coarser and the finer sediments.Due to affection of the landform of the river-mouth bar, the fundamental characteristic of sediment distribution and grain-size probability curves along the bed of the subaqueous river channel exhibits an inverted-order from up-stream to down-stream.The genesis of transverse formation of the river-mouth bar is wave action, especially that in the south-west direction. In the mid 19th century, the deep bed of the subaqueous channel outlet deflects eastward at the southern side of Shilanzhou Island and the ebb-tide current, the residual current and the south-west nearshore current are all reversed in direction, and thus the embryonic form of the transvers river mouth bar is formed.In the mid 20th century the subaqueous channel outlet in the bar-crest is closed, and became a bow-shaped snoal. At present, the river-mouth bar continuously grows higher and greater.The shape of the grain-size probability distribution of the river-mouth bar sand at the bar-crest is concave downward very similar to the probability curve of the river-mouth bar sands of the modern Changjiang (Yangtze river) and the ancient river (early Tertiary period) of northern Jiangsu and western Liaohe. It is called transitional mixed texture. It's the sediment of the effective wave and flow in depositional process of sediment transports along the flowing direction. And it differs from the grain-size probability curve of river mouth bar sand with double saltation population concave upward, The latter is a reflection of the depositional process of bidirectional transport by swash and backwash

本文采用粒度概率曲线、频率曲线与粒度基本参数相结合的方法,分析西江河口(磨刀门)沉积环境,重点探讨河口拦门沙及其沉积结构的形成。认为波浪作用是西江河口拦门沙形成的主要动力;对粒度概率曲线的过渡式和双跃式加以区别,并探讨其成因。

The transition curve of 6th power function is a higher quality of transition curve in theory and practice. It is also suitable for use to a small radius circle curve as a transition curve. For the purpose of application, the author tabulates the coefficient tables of transition curve of 6th power function and describes emphatically its application to switch-back curves.

理论和实践证明,六次代数式缓和曲线是一种质量较高的缓和曲线,它适用于作小半径圆曲线的过渡曲线.为了应用,笔者编制了六次代数式缓和曲线系数表,并着重阐述了它在回头曲线中的应用.

In this paper, dielectric waveguide branching directional coupler with curved transition sections is investigated by the method of multimode network. The coupling problem is analyzed from viewpoint of the scattering of incident surface waves by the nonuniform dielectric structure as a whole. The coupling characteristics of the coupler are calculated with a particular attention directed to the effect of radiation due to bending of the curved transition waveguides and other discontinuities on the performances...

In this paper, dielectric waveguide branching directional coupler with curved transition sections is investigated by the method of multimode network. The coupling problem is analyzed from viewpoint of the scattering of incident surface waves by the nonuniform dielectric structure as a whole. The coupling characteristics of the coupler are calculated with a particular attention directed to the effect of radiation due to bending of the curved transition waveguides and other discontinuities on the performances of the coupler. The curves given in this paper can be used as a reference for designing the couplers.

本文用多横网络的方法,从表面波对非均匀介质结构散射的观点研究了具有曲线过渡段的介质波导分支定向耦合器的耦合问题。着重讨论了曲线过渡波导及其它不连续性所产生的辐射对耦合器性能的影响。文中给出的各种曲线可供设计耦合器时参考。

 
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