这就意味着月球绕行太阳的速度的改变范围是在地球绕行太阳速度的97% ~ 103%范围之间。
That means that the speed of the Moon around the Sun will vary between about 103% and 97% of the speed of the Earth around the Sun.
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 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.
在地球上，人们认为，表明太阳黑子周期最可靠的迹象之一是树木的生长速度，就像树干横截面上可见的年轮一样。
On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.
目标是测量AU；随后，当我们知道了所有围绕太阳的其他行星的轨道速度，对太阳系的规模就有充分的认识了。
The goal was to measure the AU; then, knowing the orbital speeds of all the other planets around the Sun, the scale of the Solar System would fall into place.
在太阳系所有行星中，火星绕太阳的轨道速度第四快。
Mars's orbit around the Sun is the fourth fastest orbit of all the solar system planets.
不过，NASA研究太阳的科学家认为以这次日冕爆发的速度和特征，表明它是一个非典型的日冕物质喷发。
Nonetheless, NASA solar scientists agree that its speed and characteristics suggest that it was indeed a non-typical coronal mass ejection.
特别是月球绕行太阳的速度决不可能是负的，所以月球永远不会向后打转。
In particular, the speed of the Moon around the Sun will never be negative, so the Moon will never loop backwards.
太酷了！飞机飞离地面后，以每小时28英里的速度向高空爬升。技术人员称，飞机的两翼内置有12块太阳能电池。
That's pretty cool! The propellers lifted off the ground at 28 miles per hour. And they say there are 12 solar cells built into its wings.
同样，OCO也会研究太阳反射光线中的二氧化碳和氧气特征光谱，它将于705公里的上空以99分钟绕地球一圈的速度飞行。
OCO will similarly study carbon dioxide and also oxygen signatures in reflected sunlight. It will fly at an average altitude of 705km and orbit the Earth about every 99 minutes.
飞机在白天利用太阳能爬升到较高的高度，然后利用高度把势能转换成飞行速度，给电池组充电，用来维持夜晚的航行。
The plan is to climb to higher altitudes during the day, and trade that altitude for airspeed, supplemented with battery power, to continue flying during the night.
汇丰(HSBC)预计到2012年太阳能产业将以每年增长45%的速度增长。
HSBC predicts that the solar industry will grow by 45% a year until 2012.
在过两年，速度达到光速的90%， 远离太阳系； 发射四年之后，飞船开始了时间旅行。
Two years later it would be travelling at 90 per cent of the speed of light.
这个修正了的速度表明，银河系的质量大约是太阳的3万亿倍。
The revised speed suggests the Milky Way weighs some 3 trillion times the mass of the Sun.
美国国家航空和航天局的太阳力学天文观测台称，有一股强大的与耀斑引起的日冕物质抛射大约以每秒560英里（每秒900千米）的速度向地球袭来。
NASA's Solar Dynamics Observatory said it saw a large coronal mass ejection (CME) associated with the flash blasting toward Earth at about 560 miles per second (900 kilometers per second).
据来自洛克希德马丁太阳和空间科学实验室的学术前沿巴特德 巴日尔说，以这个速度，从旧金山到伦敦只要花几分钟。
As lead study author Bart De Pontieu of the Lockheed Martin Solar and Astrophysics Laboratory in Palo Alto, Calif., points out, that is fast enough to travel from San Francisco to London in minutes.
据来自洛克希德马丁太阳和空间科学实验室的学术前沿巴特德巴日尔说，以这个速度，从旧金山到伦敦只要花几分钟。
As lead study author Bart De Pontieu of the Lockheed Martin Solar and Astrophysics Laboratory in Palo Alto, Calif. , points out, that is fast enough to travel from San Francisco to London in minutes.
可以说，航天器的速度是挣脱地球乃至太阳引力的惟一要素，目前只有火箭才能突破宇宙速度。
It can be said that the speed of the spacecraft is free of the Earth and even the sun's gravitational the only factor, only the speed rockets can break through the universe.
他还指出了，地球在近日点的速度要比它在远日点快，近日点离太阳比较近，远日点是距离太阳最远的地方。
He also figured out the planet goes faster when it's at perihelion, nearer the sun, than when it's at aphelion, its farthest distance.
关键之处就在于速度，太阳能的传递几乎就在瞬间完成，所以很少能量以热的形式耗散掉。
Speed is the key –the transfer of the solar energy takes place almost instantaneously so little energy is wasted as heat.
我们看到进行核反应产生中微子的太阳核心的自转速度明显比太阳表面慢。
The core of the sun - where nuclear reactions produce neutrinos - apparently spins more slowly than the surface we see.
不管地球的运行速度只有每秒钟18英里，它还是一年又一年地围绕着太阳运转。
Despite moving at 18 miles per second, it still takes the Earth a year to make it around the Sun.
这些航天器全都使用了射弹弓式的引力辅助方法，从而在外太阳系中提高速度。
All these spacecraft have used sling-shot style gravity assist maneuvers to increase their speeds through the outer solar system.
奇异子的速度很大，能在四分钟内穿过像太阳这样的恒星或行星。
Q balls are speedy, zipping through a planet or star like our Sun in less than four minutes.
而航行者1号是速度最快的，正以约每秒17千米的速度脱离太阳系。
Voyager 1 is moving the fastest though, escaping the solar system at about 17 kilometers per second.
通过电能和顶部太阳能装置收集的太阳能共同驱动，这种巴士最快能达到40公里每小时的速度，因此它不适合用作长线行驶。
Running on solar power gathered from its rooftop supplemented with grid energy, the "Fast Bus" is expected to top out just shy of 40 miles per hour, so it's not ideal for long treks.
如果当它远离太阳的时候，它的速度会变慢，这样面积就始终和时间成比例变化。
And, if it's farther away from the sun, then it has to go slower so that the area remains proportional to time.
不要指望太阳能飞机能打破飞行速度记录。
飞驰通过银河系，比太阳的速度还快。
就在不久之前，中国已拥有世界上最大的私营太阳能研究设施，世界上运行速度最快的计算机。
Just recently, China became home to the world's largest private solar research facility, and the world's fastest computer.
就在不久之前，中国已拥有世界上最大的私营太阳能研究设施，世界上运行速度最快的计算机。
Just recently, China became home to the world's largest private solar research facility, and the world's fastest computer.
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