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。
One characteristic of Earth's orbit is its eccentricity, the degree to which the orbit is an ellipse rather than a circle.
地球轨道的一个特点是它的离心率，也就是轨道是椭圆而不是圆形的程度。
They are the radius of the orbit, the energy of the system and the velocity of the electron, and I am just going to present you the solutions.
它们是轨道的半径，系统的能量以及电子的速度，我接下来给你们展示解法。
The satellite was launched into the orbit around the moon.
卫星被射入环绕月球的轨道。
Earth is the only one of the inner planets with a large satellite, the orbit of which is neither in the equatorial plane of Earth nor in the plane in which the other planets lie.
地球是内行星中唯一一个有大卫星的，它的轨道既不在地球的赤道平面上，也不在其他行星所在的平面上。
We know the orbit of this object very well.
我们非常了解这一物体的轨道。
Let's look first of all at the radius of the orbit.
首先是轨道半径。
What does the orbit of the Moon around the Sun look like?
月球绕太阳的轨道是什么样的呢？
A carrier rocket reaches the orbit in 8 minutes after launching.
一运载火箭在发射后八分钟进入轨道。
Let us test Kepler's third law for the orbit of Uranus compared with that of earth.
让我们比较天王星和地球的轨道，来检验一下开普勒第三定律。
The law of universal gravitation helps us predict accurately the orbit of a spacecraft.
万有引力定律帮助我们精确计算宇宙飞船的轨道。
Most pressing for us now is to bring moral cultivation within the orbit of college education.
我们的当务之急是将道德修养纳入大学教育的轨道。
They were searching for Vulcan, a putative planet inside the orbit of Mercury, by looking for its transits.
他们通过寻找凌日来寻找水星轨道内的一个假定的行星伏尔甘。
The satellite traveling in the orbit is always escaping from the earth only to be pulled back by gravity.
在轨道上运行的卫星总是要飞离地球，而结果总是被地心引力拉回来。
Indeed, who would refuse a chance to rise up to the stars and have a look at our Planet Earth from the orbit?
的确，谁又会拒绝这样一次升上星空，从轨道俯瞰我们地球的机会呢？
The point in the orbit nearest the sun is called perihelion, while the point farthest is called aphelion.
在轨道上最接近太阳的点被称为近日点，而最远离太阳的点被称为远日点。
"With this we can control both the orbit and the attitude using only sunlight," says Yuichi Tsuda of the Japan Aerospace Exploration Agency.
日本宇宙开发机构的津田雄一说：“借助智能玻璃，我们只要利用太阳光就可既控制飞行轨道又控制飞行姿态。”
Voyager 2 and Pioneer 11, both also well beyond the orbit of Pluto, are 14.2 billion and 12.4 billion kilometers from the Sun respectively.
航行者2号和先驱者11号也都超越了冥王星轨道，分别离太阳有142亿和124亿千米。
They were started by slow and subtle shifts in the orbit of the Earth that changed the amount and distribution of radiation reaching us from the sun.
地球轨道缓慢而微弱的变化改变了阳光照射我们的数量和辐射的分布，从而引发了这些变化。
But if your surgeon doesn't know how to do it and you tell them to start taking the fat out from above the orbit, that can lead to complications.
但如果你的手术医生不知道该如何做，而你告诉他们应该从去除眼眶上的脂肪组织开始，就有发生并发症的可能。
In fact, if Betelgeuse replaced the sun in our solar system, its outer layers would extend past Earth and Mars and to nearly the orbit of Jupiter.
实际上，如果让参宿四来代替我们太阳系的太阳，它的外层将会延伸超过地球和火星，并且几乎接近于木星的轨道。
Their theory was that the orbit of this star every 26 million years moved into an area called the Oort cloud and dislodged comets that then pounded the earth.
他们的理论是，这颗星星的轨道每隔2600万年都会进入奥尔特星云所在的区域，从而激发该处的彗星冲击到地球上。
The scope of our research and teaching is immense, ranging from the inaccessible depths of the terrestrial interior outward to the orbit of Pluto, and beyond.
我们的研究和教学的范围极为深广，从难以抵达的地球内部到冥王星和其轨道之外的领域。
He studied the light curves of asteroids and thus their rotation, and also studied the variable star CZ Cassiopeiae, and the evolution of the orbit of Comet Halley.
张钰哲研究小行星的光变曲线和旋转、CZ仙后座变星以及哈雷彗星轨道的变化。
The orbit of the earth around the sun is eccentric because the orbit is slightly elliptical and so has effectively has two centres (neither of them the centre of the sun).
地球环绕太阳的公转轨道是偏心的，这是因为地球的公转轨道稍微呈椭圆形，所以这个轨道实际上就有两个中心（这两个中心都不与太阳的中心重合）。
The new model, which tracks thousands of tiny particles beyond the orbit of Neptune, could help astronomers work out the properties of planets in other stars' dust disks.
这个新模型追踪了海王星轨道外数无数个微小物体的运行轨迹，它可以帮助天文学家计算出其他星系尘埃盘中行星的特性。
The new model, which tracks thousands of tiny particles beyond the orbit of Neptune, could help astronomers work out the properties of planets in other stars' dust disks.
这个新模型追踪了海王星轨道外数无数个微小物体的运行轨迹，它可以帮助天文学家计算出其他星系尘埃盘中行星的特性。
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