卫星本身将绕地球轨道运行一段时间。
The satellite itself will orbit around the earth for a period of days.
月球绕地球轨道运行。
当时阿波罗17号飞船的成员正在绕地球轨道运行，以观测月亮。
At that time, Apollo 17 spacecraft members are in orbit around the Earth to the Moon observation.
结构通常指固定于地球表面或绕地球轨道运行的大型人造建筑物体。
A structure usually refers to any large, man-made object permanently fixed to Earth's surface or in its orbit, as a result of construction.
绕地球轨道运行的卫星瞬间就能把声音和图像从一个地点传送到另一地点。
Satellites orbiting the earth can transmit voices and video instantaneously from one point to another.
绕地球轨道运行的时候，宇航员经常会采集一些图片，有些是日照亮斑，有些是太阳光洒落水面发生镜面反射的效果。
Astronauts orbiting the Earth frequently collect images that include sunglint, or the mirror-like reflection of sunlight off a water surface.
1981年4月12日，哥伦比亚号航天飞机从肯尼迪航天中心发射升空，此次旅行指挥长约翰·杨和罗伯特·克里平将绕地球轨道运行37次。
Lift off! Columbia launches from the Kennedy Space Center on April 12, 1981, and orbits the Earth 37 times with commander John Young and pilot Robert crippen.
米兰科维奇在20世纪早期提出，冰河时代是由地球绕太阳运行轨道的变化引起的。
Milankovitch proposed in the early twentieth century that the ice ages were caused by variations in the Earth's orbit around the Sun.
这一假设认为，地球运行的变化，特别是绕太阳轨道的变化，会导致太阳到达地球能量的不同。
It says that variations in earth's movements, specifically in its orbit around the sun, these variations lead to differences in the amount of solar energy that reaches the earth.
那时月球运行轨道较小，绕我们一周也就需要20天的时间，当时地球上的一天也就只有18个小时。
Its tighter orbit meant it needed just 20 days to go around us. A day on Earth back then was only 18 hours long.
大约每隔两年，地球会在绕太阳运行的轨道上经过火星。
About every two years, however, the Earth passes Mars as they orbit around the Sun.
流星雨是地球在绕太阳运行的轨道上穿过微粒和尘埃团时产生的。
Meteor showers occur when Earth orbits through clouds of particles and dust on its path around the sun.
这颗行星围绕着一颗名为“格里斯876”的恒星运转，该恒星距地球15光年，绕轨道运行一周的时间约为地球上的1.94天。
It is orbiting a star called Gliese 876, 15 light years from Earth, with an orbit time of just 1.94 Earth days.
由罗伯特·麦克诺特去年发现，这个绕太阳运行的冰块将在下周经过地球，并将在7月上旬靠近太阳时持续融化，在其轨道上洒下碎屑。
Discovered by Robert McNaught last year, the sun-orbiting iceberg will pass the Earth next week and will continue to melt and shed debris as it closes in on the sun until early July.
航天飞机已按预定时间进入轨道，从而使它至少能绕地球运行一周。
The shuttle went into orbit on schedule to enable it to circle the earth at least once .
两枚将探测太空天气情况的欧洲卫星终于进入绕地球运行轨道，4年前第一次发射时因运载火箭爆炸而失败。
Two European satellites that will study the weather in space are finally orbiting the Earth four years after a first launch attempt ended in disaster when a carrier rocket blew up.
作为另一个例子，地球和月亮的质心就是在一个绕太阳的近似的圆轨道上运行。
As another example the center of mass of the earth and moon moves in an approximately circular orbit around the sun.
它是在绕地球轨道上运行的人造卫星。
而且，我们可能需要等待一个很长的时间才能等到一个类地行星第二次围绕它的恒星作轨道运行：外星系的天文学家们要花两年的时间才能看到两次我们的地球绕太阳运行。
And we may have to wait a very long time for a planet like Earth to orbit its star twice: Alien astronomers would have to wait two years to observe our planet transiting the sun twice.
月球绕地球运行的轨道不是浑圆的，而是椭圆的。
The moon doesn't describe a circle round the earth, but rather an ellipse .
航天飞机已按预定时间进入轨道，从而使它至少能绕地球运行一周。
The shuttle went into orbit on schedule to enable it to circle the earth at least once.
在电视屏幕上，人们可以看到那个空间实验室在外层空是轨道上绕地球运行。
On the TV screen the sky lab could be seen orbiting round the earth in outer space.
在秋分那天，地球赤道面正与黄道（或者说绕太阳运行的地球轨道面）水平相遇。
And on the day of the equinox, the plane of Earth's equator is intersecting the ecliptic – or plane of Earth's orbit around the sun.
彗星的后裔，即流星团，沿正常的轨道运行，与地球绕太阳运行的轨道相似。
The comets' offspring, the meteor swarms, travel in regular orbits, similar to the earth's orbit around the sun.
这些装置用于在“范·艾伦辐射带”内沿一定轨道绕地球运行的卫星上，它们必须能在持续低辐射的环境中正常工作。
These devices are used in satellites that orbit the Earth within the Van Allen radiation Belts and must be able to work in a continuous low-radiation environment.
地球绕太阳轨道运行。
一旦卫星进入它绕地球运行的轨道，太阳能板就被打开用来吸收阳光。
Once the satellite goes into its orbit round the earth, the panels are unfolded in order to catch the sunshine.
月亮绕地球运行轨道为椭圆形而非正圆。所以月亮绕地球运动的过程中，有时月亮会离地球近一些，而有的时候离地球远一些。
The moon's orbit is elliptical rather than perfectly circular, so as the moon moves around the Earth it is sometimes a little bit closer and sometimes a bit further away from us.
月亮绕地球运行轨道为椭圆形而非正圆。所以月亮绕地球运动的过程中，有时月亮会离地球近一些，而有的时候离地球远一些。
The moon's orbit is elliptical rather than perfectly circular, so as the moon moves around the Earth it is sometimes a little bit closer and sometimes a bit further away from us.
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