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坐标的变换公式

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A rigorous coupled wave theory for the Bragg diffraction of a Gaussian beam in the uniaxial crystal is derived and a group of rigorous coupled wave equations and diffraction efficiency formula are obtained in terms of the proper coordinate transformation and Riemann method .

利用适当的坐标变换和黎曼方法建立了高斯光束在单轴晶体中布拉格衍射的严格的耦合波理论,获得了一组严格的耦合波方程和衍射效率计算公式,讨论了衍射效率随折射率调制量的关系以及波长选择性和角度选择性,同时分析了衍射效率对再现光宽度的要求。

Through the Radon transformation of the normally ordered Wigner operator we introduce two mutually conjugate intermediate coordinate- momentum representations. Based on them we construct the appropriate quantum phase space theory which includes the new Wigner operator adapting to this space and construct the appropriate generalized Fredholm operator equation and then find its solution. We then deriving the Hermite polynomials operator identities by applying the Fredholm equation. We also reveal the connection between the generalized Wigner operator and the 2-dimension normal distribution in statistics, which is useful to study the quantum tomogram. As the application of the entanglement Husimi operator theory we calculate the Wigner function and the Husimi function of the one- and two-mode combination squeezed state , study their characters through drawing the three-dimensional graphics.

由正规序Wigner算符的拉登变换引入了两个互为共轭的中介坐标-动量表象,在此基础上我们建立了相应的量子相空间理论,其中包括引入适合该空间的新的Wigner算符;并在该表象的基础上,建立了广义Fredholm算符方程,求出了它的解,并运用该方程导出有关厄米多项式的算符公式;揭示广义Wigner算符与统计学中的随机变量的二维正态分布形式上的相似,这对于研究量子态的tomogram(是英文Tomography的派生词)有用。

The carriage positioning was finished, the coordinate transformation matrix of the bucket relative to the ground and the digging depth were obtained and it is easy to make the three-dimensional trace control of the hydraulic excavator bucket easy.

然后,推导该定位车体位姿下铲斗坐标系相对于大地的坐标变换矩阵,导出挖掘深度定位公式,实现了挖掘机挖掘轨迹的三维空间定位,为实现挖掘机的三维空间轨迹精确控制与挖掘深度控制打下了基础。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。