But why does then the moon orbit the earth?
那么为什么月亮绕着地球转呢？
Once the Soyuz began to orbit the Earth, the failures began.
当联盟号开始环绕地球的时候，失败随之降临了。
Shenzhou Seven will orbit the Earth at an altitude of 343 kilometers.
神七在343公里高空的轨道绕地球飞行。
On February 20, 1962, Glenn became the first American to orbit the Earth.
1962年2月20日，格伦成为首位进入地球轨道的美国人。
The orbit of this comet intersects the orbit of the Earth.
这颗彗星的轨道和地球的轨道相交。
The earth takes a year to orbit the sun.
地球绕太阳一周要一年的时间。
A new satellite has been put into orbit around the earth.
一颗新的人造卫星被送上了环绕地球的轨道。
Its orbit brought it relatively close to the Earth, within 122 million miles of it.
它的轨道将它带到了距离地球1.22亿英里之内，距离地球相当之近。
The rocket successfully lifted a reconnaissance satellite to low Earth orbit.
火箭成功的将一枚勘测卫星送入地球低轨道。
The velocity of the Earth in orbit is about 30 kilometers per second.
地球在轨道里的速度，约为30千米每秒。
The International space station is the ninth inhabited space station to orbit Earth.
国际空间站是地球轨道上的第九个载人空间站。
It has reached the point where this oval orbit is nearest to the Earth.
最近，月球到达了离地最近的椭圆轨道点上。
The space telescope was launched into Earth orbit in March 2009.
太空望远镜在2009年3月发射进入地球轨道。
Orbit of the Moon, and we see the Earth.
月球的轨道，以及我们看到的地球。
The earth is one of mine planets which move in orbit round the sun.
地球是沿轨道围绕太阳运行的九大行星之一。
About every two years, however, the Earth passes Mars as they orbit around the Sun.
大约每隔两年，地球会在绕太阳运行的轨道上经过火星。
The Moon's elliptical orbit means its distance from the Earth is not constant.
月球椭圆型的轨道意味着它到地球的距离是变化着的。
Orbit the moon travels in an orbit around the earth.
月亮在绕着地球的轨道上运行。
In orbit around the Moon, the orbiter was about 372,335 kilometers from Earth.
环绕月球时，卫星距离地球约372,335公里。
If the Earth is stopped in its orbit what time will it start up again.
如果地球在其轨道上停转了，那什么时候它又会开始转起来？
the planets, Earth included, orbit around the sun on this celestial sheet.
括地球在内）都沿着轨道绕着太阳公转。这代表太阳系平面，学名“黄道”。
Thee earth moves in an approximately circular orbit around the sun.
地球在一个近似正圆的轨道上绕着太阳运行。
They put a weather satellite into orbit about the earth.
他们把一颗气象卫星送入环绕地球的轨道。
It's a satellite in orbit round the Earth.
它是在绕地球轨道上运行的人造卫星。
The aim of this flight was to test the new shuttle system, to go safely up into orbit and to return to the Earth for a safe landing.
这次飞行的目的是为了测试新的航天飞机系统能否安全的进入轨道和安全的返回地球着陆。
The orbit of the artificial satellite has an apogee of 200 miles from the earth.
这个人造卫星的轨道，其最远点在离地球200英里的地方。
The orbit of the artificial satellite has an apogee of 200 miles from the earth.
这个人造卫星的轨道， 其最远点在离地球200英里的地方。
The orbit of the artificial satellite has an apogee of 200 miles from the earth.
这个人造卫星的轨道， 其最远点在离地球200英里的地方。
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