查询词典 affine transformation

The inverse function of the geometric transformation method and formula of magnetic field intensities from transformation region to external one are given.

给出几何变换函数的反函数的数学模型，以及变换域和外域之间的场量变换公式。

Now by using Dai's exact solution formula and studying the asymptotical behavior controlcondition and using the series expression of the famous Riemann Zeta-function in number theory,after introducing and proving a new representation theory of inverse Laplace transformation wedirectly obtained Chen's solution formulae and their unique existence condition without usingLaplace transformation and〓 inverse formula.

本文从带消发散参数的严格解出发，通过研究渐近行为控制条件，利用数论中著名的Riemann-Zeta函数的级数表示，引入并证明一个逆Laplace变换的新的表示定理，直接导出了陈等发展的级数解，并得到了级数解的存在、唯一性条件。

A new algorithm of Arnold inverse transformation is proposed for the fact that the period of Arnold transformation depends on the image size.

针对Arnold变换的周期依赖于图像的阶数这一特性，提出了一种反变换算法。

Transformation plasticity is inverse deformation during phase transformation under low loading.

相变塑性是材料在相变过程中由于外部应力引起的材料的不可逆变形。

And with Fourier transformation or its inverse transformation,the graph of this signal in the other domain is updated.

随着电子技术的不断发展，计算机技术与仪器技术结合得越来越紧密，出现了大量的任意波形发生器，它们能产生的波形不断丰富，除上面提到的基本波形外，还能产生Chirp信号、Sinc信号、MultiTone信号、脉冲信号以及各种噪声信号等。

Second, transient flow for vertical well and fractural well in porous media with arealanisotropy has been researched in this paper. The analytic solution for vertical well andsemi-analytic solution for vertical fractural well is developed by using image inversion,superposition principle, Laplace transformation, Fourier transformation, as well as theirinverse transforms, and storage and skin are taken into account. For vertical fractural well,influence of pressure and productivity is studied when the orientation of artificial fractureisn't in accordance with the direction of major permeability, it is fundamental to evaluatepotential and analyze well test data.

文中研究了平面各向异性储层不定常渗流问题，建立了平面各向异性储层交叉直线边界中一口直井渗流的数学模型，利用镜像反演、Laplace变换、Fouier变换及其反变换推导了不同边界条件下直井的Laplace空间解析解，考虑井储和表皮的影响，分析了曲线特征及影响因素的敏感性曲线；并运用影响椭圆及Duhamel叠加原理，推导了平面各向异性储层中垂直裂缝井的压力分布方程，考虑了水力裂缝与主渗透率轴成一定角度对压力及产能的影响，为垂直裂缝井的产能评价及试井分析提供依据。

Of arbitrary isogon of arbitrary linear symmetry transformation , breaking the former only for a fixed linear symmetry transformation , eliminating the symmetry of the fixed line every time when the importation of trouble

详细说明：这是关于任意正多边形关于任意直线的对称变换，打破了以前的只能对于一个固定的直线的对称变换，省去了关于固定直线对称时每次都要输入的麻烦

Some problems and limitation of Historical materialism have been pointed out by Jurgen Habermas his comprehension and transformation, but some of his comprehension and transformation need to be discussed.

哈贝马斯对历史唯物主义的理解和改造，有些方面确实看到历史唯物主义的问题和不足，有些方面是值得商榷的。

Biology, and especially biochemistry, is important in studying the transformation of plant and animal tissues into kerogen during burial and the generation of oil or gas that may be caused by this transformation.

碳酸盐岩沉积物，特别是生物礁，只有在现代海洋动物群落和植物群落生态学详细资料的帮助下才能获得有益的研究成果。生物学

Biology, and especially biochemistry, is important in study ing the transformation of plant and animal tissues into kerogen during burial and the generation of oil or gas that may be caused by this transformation.

生物学，尤其是生物化学，对于埋藏过程中动植物组织转化为干酪根并由此生成石油和天然气的研究很重要。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48