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

    岁差基本上地球自转轴方向改变

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  • Since Earth’s rotation rate varies, so would the value of one second when it’s defined as a fraction of the time it takes for one spin of the Earth on its axis.

    由于地球自转速率发生偏离因此地球绕中轴旋转作为单位时,(这种偏离)相当于一秒钟时间

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  • The parameter for the rotation is determined from the mouse for the particular axis.

    旋转参数特定轴上鼠标位置确定的。

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  • What is the moment of inertia for rotation of a rod about this axis?

    关于这个,旋转动动量多少?

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  • The radius from the axis of rotation- the axis of rotation is here — and the distance from here to here, though you may not think so, is about 15 meters.

    半径这个转动-,转动轴在这里-距离这里这里,你们也许想不到15

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  • 1/2I So this can also be written as one-half I, C I put a C there you will see shortly why, because the moment of inertia depends upon which axis of rotation I choose times omega squared.

    可以写成这里写上,你们马上发现原因就是转动惯量,取决于选择转动,乘以ω平方

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  • Positive values for the angle rotate the object clockwise if you look along the positive rotation axis.

    角度正值,则表示顺着旋转轴方向观察,对象是按顺时针旋转的。

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  • The Earth's axis of rotation is tilted in relation to the ecliptic plane, an imaginary surface through Earth's orbit around the sun.

    地球自转轴黄道面呈一定角度。黄道地球公转轨道所在一个假想平面

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  • Of course, with the camera fixed to a tripod, the stars themselves produce concentric trails in long exposures, a reflection of the Earth's rotation around its axis.

    当然装在三角架上照相机固定摄影,长时间曝光能拍到星星地球自转而形成的同心圆轨迹

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  • It takes Earth 24 hours to complete a rotation on its axis, and roughly 365 days to complete an orbit around the sun.

    地球花费24小时完成地轴一周的自转,花费大约365完成绕太阳一周的公转。

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  • The idea is that the craft circles ourplanet at the same speed as Earth’s rotation about its axis.

    这样目的为了在地球自转同时,使卫星能够地球同转动。

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

    至于转动惯量要求其实是旋转轴距离平方

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  • The scientists were also shocked by data showing that Uranus' magnetic north and south poles were not closely aligned with the north-south axis of the planet's rotation.

    科学家震惊数据显示天王星磁场南北极行星旋转南北轴线极不一致

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  • The dual axis rotation makes for super-clean clothes, and using the drum as a laundry basket helps users make sure that they are washing full loads rather than energy-wasting partial loads.

    双轴旋转使衣物得更干净,而且圆鼓可以帮助用户确保衣物一次性洗完,而不是浪费能量的分批清洗。

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  • For rotation of the workpiece around the horizontal axis.

    对于周围水平转动工件

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  • Rationally define the work gear pump speed, gear and the axis of rotation to avoid engaging resonance frequency, can prevent noise intensified.

    合理确定齿轮泵工作转速,使齿轮转动避开啮合共振频率可以防止噪声加剧

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  • If I take a rotation about the z-axis.

    如果z轴周围一个旋转

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  • Concretely, this curl gives you the angular velocity of the rotation, well, with a factor two but that doesn't matter, and the axis of rotation, the direction of the axis of rotation.

    给出这个旋转速率一个因子2没关系,给出旋转轴旋转轴的方向

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  • A gyro measures rate of rotation around a particular axis.

    陀螺仪测量机体围绕某个轴向旋转速率值。

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  • And we pass both high tides during each twenty-four-hour rotation of the earth on its axis.

    地球自转24小时期间我们就会经历涨潮

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  • And if the axis of rotation doesn't coincide with the line through the two hot spots, if the neutron star rotates, you're going to see X-ray pulsations.

    不合这两点之间线,相一致如果中子星旋转,看到x射线脉动热点在这里。

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  • Let's say we do rotation about the X-axis.

    也就是绕x旋转

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

    旋转轴支撑结构中央操作台一部分

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  • The scanning mechanical device, including a bracket and the rotation axis, driven by a stepper motor.

    扫描机械装置包括支架旋转轴一个步进电机驱动。

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  • Firstly, the Gauss map of points on the cylinder and a random sampling method are used to compute the rotation axis equation of the simple articulator.

    首先通过构造圆柱面高斯任意采样方法计算出简单合架转动轴线方程

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  • Low-voltage stepper motors, Japan THK's high precision guide linear, precision ball screw with the rotation. Single-axis CNC system operation, smooth running durable.

    低压步进电机日本THK高精度直线导轨精密滚珠丝杠配合转动。单数控系统操作运行平稳经久耐用

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  • The plane rotation axis system adopted for the bridge is composed of plane rotation axis, inner and outer safety legs and plane ring slideway.

    大桥采用平面转动轴心体系平面转动轴心、内外保险和平环形滑道组成。

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  • The plane rotation axis system adopted for the bridge is composed of plane rotation axis, inner and outer safety legs and plane ring slideway.

    大桥采用平面转动轴心体系平面转动轴心、内外保险和平环形滑道组成。

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