A slow westward shift of the equinoxes along the plane of the ecliptic caused by precession of the Earth's axis of rotation.

Taper support rib usually two or three cam roller contacts, in order to edge into the axis of rotation to be sent to the uniform output shaft.

锥度支撑肋通常与两个或三个凸轮滚子接触，以便入力轴的旋转可均匀地传送到出力轴。

More precisely curl v measures twice the angular velocity, or maybe I should say the angular velocity vector because it also includes the axis of rotation.

更精确地，curv，v值为角速度的2倍，或许我应该说，角速度向量，因为它带有旋转轴。

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。

Because the core current is somewhat symmetrical around the axis of rotation, the associated magnetic field is similar to that of a bar magnet.

因为地核流在旋转轴周围存在着一些对称，所以相关的磁场与棒磁铁的磁场相似。

An approach of adding a axis of rotation to wire cut electric discharge digital control machine tool and how to use this new machine is discussed in this paper.

介绍了对数控线切割机床增加一个回转轴的改造方法，及如何利用新增加的回转轴来进行加工；

On the effect of centering error in the mounting of master ball upon the measurement of radial motion of an axis of rotation

回转轴径向误差运动测量中标准球安装偏心的影响

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。

The measurement concerning the radial motion of an axis of rotation is one of among the key items of measurement in mechanical engineering.

回转轴径向误差运动的测量是机械工程测量中的重要项目之一。

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。

Unbalance means the non-uniform distribution of the mass of a rotor about its axis of rotation.

不平衡是指转子相对于其旋转轴质量分布不均匀。

Just I would have to sum the square of a distance to the axis of rotation.

只要计算到旋转轴距离的平方的总和。

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

旋进基本上是地轴旋转方向的变化。

Disturbances to a Rotating Fluid with a Sphere Moving along the Axis of Rotation

旋转流体中圆球沿旋转轴运动产生的扰动

Use the principle of axis of rotation to calculate the conical cutter axis vector.

通过绕空间轴旋转原理计算锥形刀刀轴矢量。

A Dynamic Balancing Method for Determining the Axis of Rotation of Spinning Spacecraft

确定自旋航天器旋转轴的动平衡方法

An Estimation Algorithm of the Axis of Rotation from 3D Cloud Data Based on Line Element

基于线元几何的旋转面点云数据旋转轴提取算法

The part of the azimuth adopts a revolving pedestal, the part of the pitching combines a photoelectric sensor and the axis of rotation.

方位部分采用转台式结构，俯仰部分把光电传感器与转动轴合二为一。

The concentrated load is applied by changing the axis of rotation of the frame and fork to MPC multipoint restriction.

运用MPC多点约束方式代替了车架和平叉转动轴，并用这种方式对有限元模型施加集中载荷。

Using barium hydroxide octahydrate and urea as raw material, barium carbonate is prepared homogeneous precipitation method.

以八水氢氧化钡和尿素为原料, 采用均相沉淀法制备了碳酸钡粉体.

The determination of sulfur in thiolated chitosan resins with barium sulfate nephelometry was developed.

研究硫酸钡浊度法测定硫代壳聚糖树脂含硫量的方法.