似旋转的

Secondly, in our methods, the essential geometry of the image single axis geometry may be specified by six parameters and this may be estimated from one conic and one fundamental matrix (a total of 12 parameters) or may be minimally estimated from two conics (a total of 10 parameters).

本文证明了单轴旋转运动的不变量可以通过一个基本矩阵和一条二次曲线来确定，在这种情况下，由于基本矩阵的自由度为7，二次曲线的自由度为5，所需确定的参量个数仅为12，大大减少了不变量的计算量；本文同时证明单轴旋转运动的不变量可以通过最少两条二次曲线来确定，在这种情况下所需确定的参量个数仅为10，该方法是目前同类算法中参数最少的；本文提出了用多条二次曲线求解单轴旋转运动的不变量的最大似然估计算法，其所需确定的参量个数为6+2n，其中n为二次曲线的个数，该公式更深刻地反映了二次曲线与不变量的参数关系。

They thudded against chairs, whirling their mustached runners, kneading the rug nap, sucking gently at hidden dust.

他们重重地掉下来，靠着椅子，旋转他们胡须似清洁扫帚，搓揉着小地毯，轻轻地吸走地毯里的灰尘。

Firstly, the target vector is transformed to the state with minimization of cross-polarization; then the parameters u/v/H are used to characterized scattering mechanism, and the fuzzy membership is adopted instead of "hard" division of parameter plan; finally, characterizing the coherency matrix as multivariable complex Wishart distribution, the polarimetric SAR image is classified based on Bayes maximum likelihood criteria.

该文提出了一种新的非监督分类算法，该算法首先根据去取向理论，将目标向量旋转到最小交叉极化方向；然后，采用u/v/H参数描述散射机制，以模糊隶属函数代替参数平面的"硬"阈值划分；最后，以多元复Wishart分布描述相干矩阵，基于Bayes极大似然分类准则进行分类。

"We have been observing a sun-like star called 55 * Cancri, star 55 from constellation * Cancer for 90(19) years, and we watch the * wobble of the star as * it's yanked on by the planets orbiting it and were just now announcing the discovery of the fifth planet, the first planetary system with five full planets orbiting the sun like star."

&我们在 Cancer 星系观察到一个'似日'星被称为 Cancri 55已经有19年了。我们观察到由于受到行星饶它旋转拉力的作用使这课星星摆动。我们刚宣布发现第五课行星，这是第一个行星系统有5课全星星绕&似日&星星旋转。&我们的太阳系有八颗行星。

It has six kinds of texture: felt-like cryptocrystallineballistic texture, fascicules ballistic texture, radiated ballistic texture, porphyritic texture,gyrated ballistic texture, replacement remnant ballistic texture.

通过镜下分析，栾川软玉的主要矿物成分为透闪石，一般含量在 95%以上，结构可分为毛毡状显微交织变晶结构、纤维束状变晶结构、放射状变晶结构、似斑状结构、旋转结构、交代残余结构。

We let the music we were only vaguely familiar with roar throu gh the house. And we twirled.

我们让似曾相熟的音乐在屋子里轰鸣，我们则在一边随着音乐飞快地旋转。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。