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1·Precession, basically is the change in the direction of earth's axis of rotation.

岁差，基本上是地球自转轴方向的改变。

2·The axis of rotation and its support are part of the central pedestal.

旋转轴和它的支撑结构是中央操作台的一部分。

3·A quaternion represents an axis of rotation and a rotation around that axis.

四元数表示一个旋转轴和一个围绕该轴的旋转。

4·The apparatus includes a base defining a generally vertical axis of rotation.

该装置包括一个基地定义一个一般垂直轴的旋转。

5·For the moment of inertia, we want the square of a distance to the axis of rotation.

至于转动惯量，要求的其实是到旋转轴距离的平方。

6·These tests are performed with the axis of rotation passing through the CG to minimise measurement errors.

这些试验都需要轴转动通过重心，以最大程度地减小测量误差。

7·The distance of the contour from its axis of rotation continuously varies through alternating maxima and minima.

这是自其旋转轴轮廓的距离不断变化，通过交替极值。

8·The craft discovered the 98 degree tilt of the axis of rotation, nine rings around Uranus and an extra ten moons.

工艺发现了旋转轴，九个天王星环98度倾斜和一个额外的10个卫星。

9·A spherical roller bearing contains two rows of barrel rollers, their axes are inclined to the axis of rotation of the bearing.

球面滚子轴承包含两行辊筒，他们倾向于轴的轴承旋转轴。

10·This paper presents a new method for an estimation of the axis of rotation based on line element geometry and kine-matic equation.

提出了一种基于线元几何与运动方程的旋转体点云数据特征分离与旋转轴提取算法。