旋转地

The equations of two classes of 3D polynomial maps that are equivariant with respect to the rotational symmetries of either a regular tetrahedron group or a regular octahedron group are strictly given, on the basis of which the properties of the general Julia sets created by these 3D polynomial maps are discussed and proved.

从理论上分析并证明了三维多项式映射满足等变的条件，精确地给出了关于正四面体群和正八面体群具有旋转不变对称性的两类三维等变映射的具体公式，在此基础上讨论并证明了三维多项式映射的广义Julia集所具有的性质。

It is shown that the return time set of strong scattering is Poincaré set, the return time set of scattering is recurrent set and the return time set of weak scattering is recurrent set for group rotation.

特别地，我们得到了强扩散系统的回复时间集为Poincaré序列，扩散系统的回复时间集为回复序列以及弱扩散系统的回复时间集为相对于群旋转的回复序列。

In most seismological studies it is assumed that the rotational components of earthquake ground motion are small enough to be neglected.

在多数地震学研究中，地震动旋转分量小到可以忽略。

His arm is up at footstrike, and he keeps the elbow below the PAS shoulder. He avoids excessive reverse rotation, and naturally "scap loads," rather than forcing the issue.

他的手臂在左脚踏出时正在高点，同时保持手肘低於投球侧肩膀，避开了过度逆向旋转的问题，还能够自然地储备肩膀能量，而不是过度用力。

RS+SLINGER type: The SLINGER is fixed to inner ring, rubber seal is fixed to outer ring. The rubber seal and inner ring can form standard torque contact sealing. This combination of two sealing elements can provide an effective barrier against the entrance of foreign matter, such as mud 、 dust 、 vapour, and the leakage of grease to keep the bearing in good working.

防尘盖与橡胶密封圈组合密封：防尘盖固定在内圈上与内圈一起旋转，橡胶密封圈固定在外圈上，密封胶唇与内圈形成标准扭矩接触密封，这种密封能有效地防止外部泥土、灰尘、水气等异物进入轴承内部，同时能阻止轴承内部的润滑脂外漏，使轴承在恶劣的工作环境下也能保持完美的工作性能。

In classic theory,it is held that, in Sobolev Space ［H1］3, there is the upper bound of the norm of the constant rotating flow of the incompressible viscous fluid between two closed surfaces. It is inversely proportional to the viscosity of the fluid, and it will go to infinity when the viscosity goes to zero.

经典理论认为，不可压缩粘性流体定常旋转流在Sobolev空间［H1］3中的范数的上界与流体粘度成反比，随着流体粘度的减小，这一上界会无限地增大。

In summary, we used the following tools during this study: 183 degree fish-eye lens, the rotation tripod which takes the lens as the center of rotation and the self-developed software which can transform the fish eye image to the spherical panorama images. The whole spherical panorama images can then be created seamlessly and conveniently for the real estate usage on the Internet and some case studies are shown in this thesis.

总而言之，使用183度鱼眼广角镜头、以镜头为旋转中心的定位云台和将广角影像转换成球形全景影像的制作软体，就可以方便地将某空间各角度的影像撷取至球形全景影像，完整的制作过程可以变得相当简易及平顺，并且基於本研究所制作的房地产实例也证实了本研究的实用性。

It is shown from this thesis that flow fields on synoptic maps can be decomposed into rotation and deformation fields. Geostrophic non-frictional cyclone and anticyclone vortex patterns are closed circulations around the center point, streamlines of frictional cyclone and anticyclone patterns have spiral forms around the focus point. Saddle fields have four vortex centers (two cyclones and two anticyclones) and a saddle point. Blocking high pressure and cut-off low pressure patterns consist of a vortex center and a saddle point.

本文说明了天气图上的流场可以分解为旋转场和变形场：地转无摩擦的气旋、反气旋的涡旋型式是围绕中心点的闭合环流；考虑摩擦的气旋、反气旋的流型是围绕焦点的螺旋型式；鞍型场有4个涡旋中心点（2个气旋和2个反气旋）与1个鞍点；阻塞高压和切断低压由1个涡旋中心点与1个鞍点组成。

This design detailedly to introduce does not there is not to scrub that the synchronical dynamo design transpories acting as the process.now the revolving silica ballast that I adopt is more prevalent does not there is not the scrubing excitation system.through main dimensions of the dynamo design to fix the electromagnetic theory , reachs again the wear and tear to the electrical machinery 、Electric current 、Tension 、Temperature rise 、Effectiveness college stone .

本设计详细地介绍了无刷同步发电机的设计运作过程，我采用的是现在较流行的旋转硅整流器无刷励磁系统。

In contrast with the original method of GOT, this technique has some advantages, for example, the use of tachometer and other special hardware are avoided in the method so the a...

采用仿真和实际试验对V_GOT算法进行了验证，试验结果表明该方法能够在时频域准确地提取幅值和复杂频率变化的阶比，适合于复杂旋转机械振动响应特征提取。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失