所以你是说，氦最初是在太阳上被发现的。
So you are saying that Helium was discovered on the sun first.
这是一个很好的假期在太阳上。
这是一个在太阳上的愉快假期。
在太阳上生活对人类来说是不可能的。
氦是在太阳上发现的。
太阳耀斑大概是在太阳上观测到的最复杂的现象。
Solar flares are perhaps the most complex phenomena observed on the sun.
然后我需要大量的水因为在太阳上实在是太热了。
Then I need a lot of water on the sun because the sun is too hot.
死在太阳上。
氦元素首先在太阳上，发现，后来，在地球上发现，通过观察太阳光谱，中的吸收线。
So helium was first discovered on the sun before it was later discovered on Earth by looking at the absorption lines of the solar spectrum.
日本宇宙飞船在太阳上发现两个巨大的空洞，它是太阳燃料和气体溢出来进入太空的通道。
A Japanese spacecraft has spotted two huge holes in the sun — gateways for solar material and gas to spill out into space.
在火星和我们太阳系的其他行星上没有氧气，这意味着这些行星也缺乏保护地表生物免受紫外线辐射的臭氧层。
The absence of an oxygen atmosphere on Mars and other planets in our solar system means that these planets also lack an ozone shield that would protect surface-dwelling life from UV radiation.
很多人认为地球绕太阳的轨道是完美的圆形，就像手在一块制作精良的手表上移动那样平滑、有规则，但事实并非如此。
A lot of people think of earth's orbit around the sun as being perfectly circular, as smooth and as regular as, say, the way that hands move on a well-made watch, but it just doesn't work that way.
太阳升起来了，照在宁静的世界上，这个宁静的村庄好像沐浴在圣光中一样。
THE sun rose upon a tranquil world, and beamed down upon the peaceful village like a benediction.
复杂的生命在地球表面进化，而不是在火星或太阳系的其他行星上，因为在那些行星上，早期的地表生命被紫外线杀死了。
Complex life evolved on the Earth's surface, but not on Mars or other planets in the solar system because on those planets, early surface life was killed by UV radiation.
当地球的轨道更接近椭圆时，地球实际上在一年的一部分时间里更接近太阳。
When Earth's orbit is more elliptical, Earth is actually closer to the sun during part of the year.
当前我们对太阳光度的认知是：在地球的历史进程上，太阳光度应该是逐渐增加而不是减少的。
Our present understanding of the Sun's luminosity holds that it should have progressively increased, not decreased, over the course of Earth's history.
所以他根据事实推断，认为太阳中有一种元素在地球上还没有被发现。
So he put two and two together, and decided there was an element in the sun that hadn't been discovered here on the earth yet.
事实上，在太阳风——一股不断从太阳上吹落的带电粒子流——的影响下，太阳的质量一直在下降。
Actually, the Sun is constantly losing mass through the solar wind, a stream of charged particles constantly blowing off the Sun.
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.
任何人只要有这样一块十进制表，再加上能看到地平线以上太阳的高度，就会立刻知道他在地球上的位置。
Any observer with a decimal chronometer and a view of the sun's height above the horizon would then know instantly where on the planet he was.
我们太阳系的有序特性使大多数天文学家得出结论，这些行星基本上在同一时间形成，且物质来源和太阳的一样。
The orderly nature of our solar system leads most astronomers to conclude that the planets formed at essentially the same time and from the same material as the Sun.
当然，该地区的驯鹿有幸目睹了月亮和太阳同时在云层遍布的河畔上亲吻了北方的地平线。
Of course the region's reindeer were able to watch as both Moon and Sun hugged the northern horizon just above a cloud bank.
在一年里这两个时间点上，太阳出现在赤道的正上方，并且在地球上绝大多数地方，白天与夜间的长度是相同的。
At these times of the year, the sun appears to be directly over Earth's equator, and the lengths of the day and the night are equal over most of the planet.
这些针状体在上个月穿过太阳的太阳活跃区域11092号中形成一条条线，不过聚集在左下角太阳黑子上的针状体特别的明显。
Spicules line the above frame of solar active region 11092 that crossed the sun last month, but are particularly evident converging on the sunspot on the lower left.
云层在土星上打漩涡，土星是太阳系中第二个大行星。
Clouds swirl on Saturn, the second largest planet in our solar system.
把一种涂有对电很敏感的透明材料的玻璃或塑胶薄片覆盖在太阳能板上。
An electrically-sensitive transparent material is deposited on glass or a plastic sheet that covers the panel.
在我们自己的太阳系，火星上极端变化的气候表明了是由于它的旋转倾角随时间在0到60度之间的变化而引起的。
In our own solar system, Mars shows evidence of extreme climate change, the result, scientists believe, of a rotational tilt that flips between zero and 60 degrees over time.
在我们自己的太阳系，火星上极端变化的气候表明了是由于它的旋转倾角随时间在0到60度之间的变化而引起的。
In our own solar system, Mars shows evidence of extreme climate change, the result, scientists believe, of a rotational tilt that flips between zero and 60 degrees over time.
应用推荐