地球独特而巨大的卫星——月球，在稳定地球旋转轴的倾角方面发挥了关键作用。
Earth's unique and massive satellite, the Moon, plays a crucial role in stabilizing the obliquity of Earth's rotational axis.
最后，月球作为地球独特而巨大的卫星，在稳定地球旋转轴的倾角方面发挥了关键作用。
Finally, Earth's unique and massive satellite, the Moon, plays a crucial role in stabilizing the obliquity of Earth's rotational axis.
岁差，基本上是地球自转轴方向的改变。
Precession, basically is the change in the direction of earth's axis of rotation.
重要的因素是机床转轴系统的设计。
The important factor is the design of machine tool's spiale system.
地球不是球形的并有一倾斜的转轴。
启动机驱动安装在电枢转轴上的齿轮。
所以，我可能会增加一个旋转轴很快。
至于转动惯量，要求的其实是到旋转轴距离的平方。
For the moment of inertia, we want the square of a distance to the axis of rotation.
大多数轴承都支承径向或轴向负荷的转轴。
Most bearings support rotating shafts against either transverse (radial) or thrust (axial) loads.
观察一个旋转轴与空气流动方向垂直的足球(见上图)。
Consider a ball that is spinning about an axis perpendicular to the flow of air across it (see left).
转轴角-----球旋转时转轴的水平角度。
北极是地球表面与假想的自转轴相交的北交点。
The North Pole is the spot on Earth’s globe that marks the northern end of an imaginary stick Earth spins around.
旋转轴和它的支撑结构是中央操作台的一部分。
The axis of rotation and its support are part of the central pedestal.
风力推动固定在转轴上两三个像推进器一样的叶片。
The energy in the wind turns two or three propeller-like blades around a rotor.
这种轴颈向滚子轴承是一种特殊的回转轴承的设计。
The axial-radial roller bearing is a special slewing bearing design.
在陀螺的设计中，转轴构件通常比外部构件要热一些。
Usually in gyro designs the shaft member tends to run hotter than the outer member.
这个转轴是连接到可以转动发电装置发电的主转轴上的。
The rotor is connected to the main shaft, which spins a generator to create electricity.
掣爪是一种非常简单的只让转轴往一个方向转动的装置。
Pawl is a simple device which allows a shaft to turn only one way.
提出了转轴系统的振动模糊可靠度计算方法和计算公式。
The method and the formula of calculating vibration fuzzy reliability of the shaft system are presented.
扫描机械装置包括支架和旋转轴，由一个步进电机驱动。
The scanning mechanical device, including a bracket and the rotation axis, driven by a stepper motor.
此外，在较高的运行速率时，自转轴承的寿命急剧下降。
In addition, spin-bearing life is sharply reduced at higher operating speeds .
扳动电动机的转轴是否能自由旋转，测量定子和轴承的空隙。
Turn the electric motor shaft if it rotates freely, Measure the air gap between the stator and the rotor.
你可以在不同的旋转轴的董事会，甚至数轮合并到一个把戏。
You can spin the board around many different axis, and even combine several rotations in to one trick.
角度为正值，则表示若您顺着正旋转轴方向观察，对象是按顺时针旋转的。
Positive values for the angle rotate the object clockwise if you look along the positive rotation axis.
单密封唇V形弹簧加强，适用于转轴圆度不佳或偏摆较大的密封。
Single lip with "V" spring reinforced, suitable for poor roundness and largely swung rotary shaft sealing.
新机体围绕着一个回转轴，它能让人在五层高的柱体上操控复制品。
The new craft's body was constructed around a rotor, which allowed the replica to be manipulated atop a five-story-tall column.
地球的自转轴与黄道面呈一定角度。黄道面是地球公转轨道所在的一个假想平面。
The Earth's axis of rotation is tilted in relation to the ecliptic plane, an imaginary surface through Earth's orbit around the sun.
地球的自转轴与黄道面呈一定角度。黄道面是地球公转轨道所在的一个假想平面。
The Earth's axis of rotation is tilted in relation to the ecliptic plane, an imaginary surface through Earth's orbit around the sun.
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