The mirrors could orbit—thousands of miles high—at the same speed as the earth turns on its axis.
这些镜子可以在几千英里的高空以地球绕地轴旋转的速度运行。
The earth revolves on its axis.
地球环绕自身的轴心转动。
Mars takes longer to revolve on its axis than the earth.
火星自转一周的时间比地球长。
The planet Venus takes 243 earth-days to turn once on its axis, so incoming heat from the sun is added and distributed at a more leisurely, observable pace.
金星自转一周需要243个地球日，因此来自太阳的热量以更悠闲、更容易观察到的速度被吸收和分配。
The tilt of the earth's axis, that imaginary pole that runs through the center of the earth.
地轴是我们虚构的穿过地心的一个倾斜的直线轴。
The earth revolves both round the sun and on its own axis.
地球既公转又自转。
The near side is always facing Earth and the far side is always facing away, because the moon revolves around the Earth at the same rate that it rotates on its own axis.
近地半球总是面对地球，远地半球总是远离地球，因为月球在绕地球旋转的同时，它也在以同样的速率绕自己的轴自转。
The sun makes this shape over a year because Earth rotates on a slightly different axis than the sun, and our planet also travels on an elliptical orbit.
太阳一年内的轨迹形成这种形状是因为地球围绕着与太阳略微不同的轴旋转，而我们的地球也沿着椭圆形轨道运行。
Nuclear bombs are humankind's most powerful weapon, but their destructive impact would unlikely alter the spinning of the Earth on its axis.
核弹是人类最强大的武器，但是它们的破坏性影响还不大可能改变地球沿着其轴线的自转。
They believe the Earth once rotated on a different axis.
他们认为地球曾绕着一个不同的轴转动。
An earthquake can make earth rotate faster by nudging some of its mass closer to the planet's axis, just as ice skaters can speed up their spins by pulling in their arms.
一次地震可以使地球旋转得更快，通过将地球的质量向它的轴线轻推，正如滑冰的人可以通过缩回他们的手臂来使旋转加速。
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，因此当把地球绕中轴旋转一圈作为一个单位时，（这种偏离）就相当于一秒钟时间。
The Earth spins on an imaginary line called an axis that runs from the north pole to the south pole, while also orbiting the sun.
地球绕一个贯穿南极点和北极点的假想轴旋转，这个假想轴称为地轴。同时也绕太阳公转。
If the rover were not moving, the frequency distortions of its signals to Earth would reveal the rate of wobbling in Mars's axis.
如果探测器与火星保持静止，那么它向地球发出的信号将会产生频率畸变。由此，我们可以推算出火星轴线的扰动率。
And our planet, earth, rotates on its own axis.
而且我们这个行星，就是地球还绕着自己的轴自转。
That figure axis is near, but does not quite align with, the rotational axis that the Earth spins around.
这个几何中轴靠近，但的确是和地球自转中心排成一行。
It takes Earth 24 hours to complete a rotation on its axis, and roughly 365 days to complete an orbit around the sun.
地球要花费24小时完成绕地轴一周的自转，花费大约365天完成绕太阳一周的公转。
The earthquake also shifted the so-called figure axis of the earth, which is the axis that the earth's mass is balanced around.
地震也改变了地球的几何中轴线，中轴的周围地球的重量是平衡的。
Well, the sun rotates about its axis in 26 days, the earth in one day, and so I finally convert everything to MKS units and I find these Numbers for the rotational kinetic energy.
太阳的旋转周期是，26天，地球是一天，最后把一切转化成，米千克秒的单位，得到旋转动能的数据。
Earth is a bit closer to the sun in early January and farther away in July, although this variation has a much smaller effect than the heating and cooling caused by the tilt of Earth's axis.
地球在1月初接近太阳，而在7月远离太阳，尽管这种远近变化的影响比地轴倾角造成的冷暖效应要小得多。
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，我们就会经历两次的涨潮。
For the sake of his life, Galileo recanted his views in 1633, admitting that the earth did not spin on its own axis.
为了保住性命，1633年，伽利略被迫宣布放弃日心说，承认地球并不是绕着地轴旋转的。
The quake not only shifted the axis, but it also shifted the length of a day on Earth.
这次地震不仅转向轴，但同时也转向地球上的一天的长度。
Our earth turns on its axis once in every twenty-four hours, and goes also round the sun once a year.
地球围绕自己的轴线旋转为每24小时一周，即一天；地球环绕太阳一次的时间为一年。
You see the earth takes twenty-four hours to turn round on its axis.
要知道地球绕轴转一回要用二十四个钟头。
It takes 29 days for the moon to rotate around its axis, and it also takes 29 days for the moon to orbit around the Earth.
月球自转一周需29天，围绕地球旋转一周也同样需29天。
The galactic forces are moving the axis of the Earth which is not involved with the tilt of the planet.
银河系的力量正移动着地球的轴线，这和星球的倾斜无关。
The galactic forces are moving the axis of the Earth which is not involved with the tilt of the planet.
银河系的力量正移动着地球的轴线，这和星球的倾斜无关。
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