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平面
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     ON P—PLANE FIELD
     p—平面
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     DYNAMIC RESPONSE OF IDEAL FLUID LAYER OVERLYING ELASTIC HALF-SPACE DUE TO P-WAVE INCIDENCE
     位于弹性半空间上的理想流体层动力反应—平面P波入射
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     DYNAMIC RESPONSE OF IDEAL FLUID LAYER OVERLYING ELASTIC HALF-SPACE DUE TO SV WAVE INCIDENCE
     位于弹性半空间上的理想流体层动力反应——平面SV波入射
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     On Relationship between the Present Stress-field and Seismic Activity of Zhangjiakou Baxia Area——Finite Element Calculation of Plane Stress-field
     张家口坝下地区现今应力场与地震活动的关系—平面应力场的有限元计算
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     2. How to reduce the fluctuation, of speed and the fluctuation of inputting torque of the system is discussed then.
     2、对如何同时减小电机—平面铰链四杆机构系统的速度波动与输入扭矩波动进行了探讨:
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     Bookshop
     平面书店
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     ON P—PLANE FIELD
     p平面
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     From Plan to Section
     从平面到剖面
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     PLANAR SNS VARIABLE THICKNESS MICROBRIDGES
     平面SNS变厚微桥
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  - plane
An affine pseudo-plane X is a smooth affine surface defined over ${\Bbb C}$ which is endowed with an ${\Bbb A}^1$-fibration such that every fiber is irreducible and only one fiber is a multiple fiber.
      
Approximate and explicit inversion formulas are obtained for a new class of exponential k-plane transforms defined by where x∈?n, Θ is a k-frame in ?n, 1≤k≤n-1, μ∈?k is an arbitrary complex vector.
      
Using a Whitney decomposition in the Fourier plane, a general bilinear operator is represented as infinite discrete sums of time-frequency paraproducts obtained by associating wave-packets with tiles in phase-plane.
      
The latter result is the main theorem proved in Part in Part II, our subsequent article [11], using phase-plane analysis.
      
In N-step phase-shifting measurement, the interferograms are seen as a series of in-line holograms and the reference beam is an ideal parallel-plane wave.
      
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Equations determining the velocity and density distributions within the mixing region of two incompressible gases with different densities are set up, their temperatures being assumed to be the same. For incompressible mixing the total number of gas molecules per unit volume is constant, although the density of the gaseous mixture varies from point to point due to diffusion of matter. As an illustration we consider the plane jet and steady motion. The boundary layer method of approximation can still be applied....

Equations determining the velocity and density distributions within the mixing region of two incompressible gases with different densities are set up, their temperatures being assumed to be the same. For incompressible mixing the total number of gas molecules per unit volume is constant, although the density of the gaseous mixture varies from point to point due to diffusion of matter. As an illustration we consider the plane jet and steady motion. The boundary layer method of approximation can still be applied. The boundary of the jet is shown to be the same as that for one fluid. The solution of the problem then depends upon the numerical value of the coefticient of viscosity of the mixture which is a function of the number of molecules of each constituent gas in the unit volume. The present method of investigation is applicable to the cylindrical and half jets and also to the case where the two gases are at different temperatures.

本文求出规定二不能压缩气体的分片合流运动时,速度与质量密度分布的微分方程式。假定两种气体的密度不同但温度则相等。不能压缩的定义是每单位体积中的两种气体分子数的和不变。本文只讨论一平面守恒注中所需要的微分方程式。粘滞流体运动中之边界近似法仍可应用。同样方法亦可用到守恒圆柱体注,半注及气体中温度不同诸问题。

Wang's generalization of Bethe's theory of snperlattices is applied to the cases of quadratic and simple cubic lattice. Only neighbour interaction is taken into consideration. All the calculations are carried out to the second approximation.

本文应用王氏之理论於平面方格及立方格中AB型超格。所有计算皆作到第二次近似值,惟仅考虑到邻近原子间之相互作用。所计算者有临界温度与合金成分之关系,秩序之程度,内能,及比热。凡Bethe氏曾经计算过者与本文计算结果相较,均相差无几。

In this paper a method of determining the degree of freedom of motion of framed structures is presented. All the framed structures, plane or space, rigid or hinged, may be analyzed with this method. The principles involved are based on the conception of freedom of motion of structures mentioned in U. S. S. R. literatures. An extension of that conception is made in this paper.From the known U. S. S. R. structural literatures available in China, it seems that the conception of freedom of motion is applied only...

In this paper a method of determining the degree of freedom of motion of framed structures is presented. All the framed structures, plane or space, rigid or hinged, may be analyzed with this method. The principles involved are based on the conception of freedom of motion of structures mentioned in U. S. S. R. literatures. An extension of that conception is made in this paper.From the known U. S. S. R. structural literatures available in China, it seems that the conception of freedom of motion is applied only to hinged structures, or to bar chains, of which the individual members have no redundants. Therefore it is the purpose of this paper to extend that conception to any structures, hinged or rigid.Two methods, which may be used parallelly, are treated and two illustrations are given, are in this paper.

本文述一檢定結構自由度之方法。所有桿條結構,不論立體平面,鉸接剛接,均可應用本法,所根據之原理,係由蘇聯建築力學中自由度之觀點出發,而加以擴充。文中述及二種方法,可以平行應用。不論平面結構,立體結構,鉸接結點,剛接結點,均巳涉及,並將結構內外部之自由度,視爲一事。文中準對二種方法,舉有二個例題,以為驗算之用。

 
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