轴旋转

When rotational axis are unknown, the general solution of camera intrinsic parameters is obtained by the eigenvectors of 2D projective transformation.

在摄像机绕未知轴旋转时，根据相应的2D投影变换，运用矩阵特征向量理论给出了内参数的通解公式。

Rubik first envisioned his venerable cube, he imagined intricately machined and assembled pieces of plastic pivoting on six axles, smoothly shifting positions into any of a possible 43 quintillion arrangements of pieces.

当鲁比克艾尔内第一所设想的古老立方体，他想象的错综复杂的加工和组装的六轴旋转的塑料件，顺利地转移到一个可能的43件千万亿安排任何职位。

This paper presents a north self-seeking model with platform rotating around a fixed axis .

目前加速度计的分辨率无法直接敏感地球自转北向分量，文中设计了一种基于定轴旋转的自主式寻北模型。

The middle nasal concha, nasal septum, optic nerve, internal carotid artery, sphenoidal sinus, dorsum sellae, hypophysis and vomer were semiautomatically segmented with software such as Photoshop, 3D-Doctor and were volume rendering and surface rendering by reconstruction on computer.

重建结构可多结构、多色彩模式显示，在三维空间绕任意轴旋转，也可对三维结构进行透明显示、任意缩放，对有关径线进行方便的测量。

A slow westward shift of the equinoxes along the plane of the ecliptic , resulting from precession of Earth s axis of rotation , and causing the equinoxes to occur earlier each sidereal year .

分点岁差：指二分点沿着黄道平面向西的缓慢移动，它由地球中轴旋转的岁差而造成，并能导致二分点每个恒星年都提早出现。

If the region in is revolved about the y-axis, find the volume of the solid of revolution.

b 若把的区域绕著 y轴旋转，求所得旋转体的体积。

If the region in is rotated through one revolution about the x-axis, find the volume of the solid of revolution.

d 若 中的区域绕 x 轴旋转一圈，求所得旋转体之体积。

Find the volume of the solid of revolution of region P about the y-axis.

c 求区域 P 绕 y 轴旋转所得旋转体的体积。

Find the volume of the solid of revolution of region Q about the x-axis.

d 求区域 Q 绕 x 轴旋转所得旋转体的体积。

Volume of the solid of revolution.

b 若阴影部分绕著 x 轴旋转360°，求所得旋转体的体积。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。