Our Solar System
美音、自然拼读、分级阅读与词汇复习
Table of Contents Introduction.
导言表。
4 The Sun.
4 太阳报.
6 Mercury.
6 水银。
8 Venus.
8维纳斯.
9 Earth.
九地相会.
11 The Moon.
月球11号
13 Mars.
13个火星。
14 Jupiter.
14号木星。
16 Saturn.
16个土星
18 Uranus.
天王星18号
20 Neptune.
20个海王星。
21 Pluto and Other Dwarf Planets.
21"冥王星等矮行星".
22 Asteroids.
22 小行星.
23 Comets.
23颗彗星。
24 Conclusion.
24 结论。
25 Glossary.
25 词汇表。
26 Introduction Our Solar System is made up of the Sun, eight official planets, several dwarf planets, and hundreds of planetary satellites, or moons.
26 导言 我们的太阳系由太阳,八颗正式行星,多颗矮行星,以及上百颗行星卫星或月球组成.
It also contains comets, asteroids, and clouds of gas.
它还包含彗星,小行星和气体云.
The Sun is the center of the Solar System.
太阳是太阳系的中心.
Everything else in the Solar System goes around, or orbits, the Sun.
太阳系的其他东西都会绕来绕去 或者绕去太阳轨道
Mercury, Venus, Earth, and Mars are the inner, rocky planets.
水星,金星,地球,和火星是内地多岩石的行星.
They are made of hard materials.
它们由硬材料所制成。
The outer planets are Jupiter, Saturn, Uranus, and Neptune.
外行星有木星,土星,天王星和海王星等.
They are known as the gas giants and are made mostly of gases.
它们被称作"气体巨头"并多由气体所制成.
The outer planets are hundreds of times larger than Earth.
外行星比地球大上百倍.
To get an idea of the size of things in our Solar System, imagine that Earth is a grape.
为了了解太阳系中事物的大小,想象出地球是葡萄.
If the Earth were the size of a grape, the Moon would be the size of a green pea.
如果地球是葡萄的大小,月球将是绿豌豆的大小.
The Sun would be as big as a ball that an adult man could stand in.
太阳会像一个大球一样大 一个成年人可以站在那里。
Jupiter, the largest planet, would be the size of a grapefruit, while Saturn, the second largest planet, would be the size of an orange.
木星,最大的行星,将是柚子的大小,而土星,第二大行星,则是橙子的大小.
Uranus and Neptune would be the size of lemons.
天王星和海王星会像柠檬一样大
Approximate size of Earth for comparison The diameter of Earth is approximately 13, 000 kilometers (8, 1 00 miles).
比较地球的大概大小 地球直径约为13,000公里(8,100英里).
The Sun’s diameter is approximately 1.
太阳的直径约为1.
4 million kilometers (870,000 miles).
400万公里(87万英里).
How many times larger is the Sun’s diameter than the Earth’s?
太阳的直径是地球的几倍?
The Sun The Sun is a huge ball of burning gas that sends energy far out into the Solar System.
太阳 太阳是一个巨大的燃烧气体球 将能量传入太阳系
The Sun plays a very important part in our daily lives, providing energy that supports all life on Earth.
太阳在我们日常生活中扮演着非常重要的角色,提供能支撑地球上所有生命的能量.
The Sun causes seasons, climate, ocean currents, air circulation, and weather.
太阳引起季节,气候,洋流,空气环流,和天气.
Without the Sun’s energy, plants could not grow and make food.
没有太阳的能量,植物就无法生长和生产食物.
Also, there would be no gas, oil, or coal, which are Earth’s fossil fuels.
此外,没有天然气、石油或煤炭是地球的化石燃料。
Fossil fuels are formed over millions of years from dead plant and animal life.
化石燃料由死生的植物和动物生命所形成,在数百万年的时间里形成.
The temperature of the Sun’s surface is approximately 6,000 degrees Celsius ( 1 0,832 degrees Fahrenheit).
太阳表面的温度约为6000摄氏度(10,832华氏度).
The Sun’s core is approximately 1 5,000,000 degrees Celsius (27,000,032 degrees Fahrenheit).
太阳的核心大约为一百万摄氏度(27,000,032华氏度).
The Sun is just one of billions of stars.
太阳只是亿万星之一
It has been around for about 4.
已经四点左右了
6 billion years.
60亿年.
It will keep producing energy for another 5 billion years.
它将再生产50亿年能源。
Before it dies, it will swell up and swallow many of the inner planets.
在它死之前,它会膨胀并吞噬许多内地行星.
Then it will shrink into a much smaller ball.
然后它会缩小成一个更小的球。
Relative sizes of the ob jects in our Solar System Sun Jupiter Saturn Uranus Neptune Pluto Mercury Earth Venus Mars Mercury Mercury is the closest planet to the Sun.
我国太阳系中斜管的相对尺寸为太阳木星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星地星是距离太阳最近的行星.
It is the smallest planet in our Solar System.
它是太阳系中最小的行星。
It takes only 88 Earth days for Mercury to make a complete orbit around the Sun.
水星只需要88个地球日就能绕太阳形成完整的轨道.
(For comparison, it takes Earth 365 days, or one year, to orbit the Sun.)
(相比较,绕太阳运行需要地球365天,或一年. )
Like all other planets, Mercury spins like a top as it goes around the Sun.
就像其他星球一样 水星会像顶部一样绕着太阳旋转
It spins very slowly.
旋转非常缓慢。
Each spin of a planet is a day on that planet.
行星的每一回旋转都是在那个星球上的一天.
A day on Mercury is 59 times longer than an Earth day.
水星上的一天比地球一天长59倍.
Because Mercury spins, or rotates, so slowly, it gets very hot during the day and very cold at night.
因为水星会旋转,或旋转,所以缓慢地在白天变得非常热,而晚上变得非常冷.
A close-up image from the NASA Discovery flight in 2008, shows the huge Caloris Impact Basin on Mercury.
2008年美国国家航空航天局"发现"飞行的特写图像显示了巨大的卡罗里斯撞击水星盆地.
As well as trapping in heat, the clouds of Venus reflect sunlight.
除了在高温中被夹住,金星云也反射出阳光.
This makes Venus one of the brightest objects in the sky.
这使得金星成为了天空中最亮的物体之一.
The air pressure on Venus is ninety times greater than that on Earth.
金星的气压是地球的90倍
For this reason, space probes that land on Venus stop working within a few hours.
因此,在金星上着陆的太空探测器在几个小时内停止了工作.
Venus rotates even more slowly than Mercury.
金星自转的速度比水星还慢.
One day on Venus is equal to 243 Earth days.
在金星上一天等于243个地球日.
Maat Mons, a volcano on Venus, is 8 km (5 mi.)
马特蒙斯(Maat Mons)是金星上一座火山,长8公里(5米.
high.
高点
It is very similar to the types of volcanoes found in Hawaii.
它与夏威夷发现的火山类型非常相近.
Venus Venus and Earth are similar in size.
金星和地球的大小类似.
But Earth and Venus are very different.
但是地球和金星是截然不同的。
Venus is covered by layers of clouds that are much thicker than clouds on Earth.
金星被地层的云层所覆盖,它们比地球上的云层更厚.
These clouds trap most of the Sun’s heat.
这些云笼罩了太阳的大部分热量。
The temperature on Venus gets very, very hot—more than four times hotter than boiling water.
金星的温度会非常,非常热——比沸水热出四倍多。
In addition to having air too heavy to breathe, scientists found that Venus rotates backward.
除了空气过重无法呼吸外,科学家发现金星会向后旋转.
This means that on Venus the Sun rises in the west and sets in the east.
这意味着在金星上太阳从西面升起,从东面起落.
The colors used on this Magellan-mission image represent different elevations on the surface of Venus.
这幅麦哲伦任务图像所用的颜色代表了金星表面的不同高地.
Earth Earth is a very special planet because it is our home and also because it is the only planet in our Solar System that can support life.
地球是一个非常特殊的行星,因为它是我们的家园, 也因为它是我们太阳系中唯一能够支撑生命的行星。
The most important difference between Earth and other planets is the abundance of liquid water.
地球与其他行星之间最重要的区别是液态水的丰富.
Water covers nearly 70 percent of the Earth.
水覆盖了近70%的地球。
Earth rotates about once every 24 hours (one day).
地球大约每24小时(一日)自转一次.
It completes one orbit of the Sun about once every 365 days (one year).
它大约每365天(一年)完成一圈太阳轨道.
Earth’s atmosphere is made up of gases that living things need to stay alive.
地球的大气层由气体组成 生物需要生存。
The atmosphere protects us from most of the Sun’s harmful rays.
大气层保护我们免受太阳大部分有害光线的照射。
It also helps to protect us from meteors by causing them to burn up before reaching Earth’s surface.
也有助于保护我们免受陨石的侵袭,
Earth has one natural satellite, the Moon.
地球有一颗天然卫星"月球".
Do You Know?
你知道吗?
Earth’s atmosphere is very thin.
地球的大气层非常薄.
If Earth were an apple, the atmosphere would only be as thick as the apple’s skin.
如果地球是苹果,那么大气只会像苹果的皮肤一样厚.
The Moon The Moon is about one-fourth the size of Earth.
月球( 月球) 月球的大小约为地球的四分之一.
It reflects light from the Sun onto us.
它反映了太阳对我们的光芒。
Many scientists believe the Moon was originally a part of Earth and was broken off in an enormous space collision.
许多科学家认为月球原本是地球的一部分,在一次巨大的太空碰撞中被打破.
Tests have shown that there is water ice on the Moon’s surface.
测试显示月球表面有水冰.
Earth’s ocean tides are caused by the gravitational pull of the Moon.
地海潮由月球引力拉出.
Mars Mars is the fourth planet from the Sun.
火星是第四颗从太阳发出的行星.
It is known as the red planet because of large amounts of rust-colored dust on its surface.
它因其地表上有大量生锈色的灰尘而得名于"红色星球".
Mars is the most Earth-like of all the planets of our Solar System.
火星是我们太阳系所有行星中最像地球的.
Mars has seasons similar to our own, and the soil there is similar to the soil on Earth.
火星的季节与我们相似,那里的土壤与地球上的土壤相类似.
But there is very little oxygen or water vapor in Mars’s atmosphere.
但是火星的大气层中几乎没有氧气或水蒸气。
The climate on Mars changes widely between seasons.
火星上的气候在不同季节间发生很大变化.
Temperatures on its surface can range from 30° Celsius (86°F) in the summer, to –130° Celsius (–202°F) in the winter.
其地表温度从夏季的30摄氏度(86°F)到冬季的-130摄氏度(-202°F).
Mars often has winds that blow up to 200 kilometers per hour (120 mph).
火星常有风能时速高达200公里(120 mph).
These winds cause great dust storms that color the planet’s atmosphere pink.
这些风造成巨大的尘暴,
There are ice caps on both poles of Mars.
火星两极上都有冰盖.
The northern one is made up mostly of water that never melts, while the southern pole is made up of carbon dioxide, which changes from solid to gas during the Martian summer.
北部由永不融化的水所组成,而南极由二氧化碳所组成,在火星夏季从固体变为气体.
Mars has two small moons, Phobos and Deimos.
火星有两颗小月球,即"花花"和"花花".
A year on Mars is almost as long as two Earth years.
火星上一年的时间 几乎长达两个地球年
A day on Mars lasts only one-half hour longer than a day on Earth.
火星上的一天只比地球上的一天长一个半小时.
Jupiter Jupiter is the largest planet in our Solar System.
木星是太阳系中最大的行星
It is like a star in many ways because it is made up mostly of gas clouds.
它在许多方面就像一颗恒星,因为它主要由气体云所组成。
The clouds of Jupiter form bands that have very high winds and are always very stormy.
木星的云形成带 有非常高的风 并且总是非常暴风雨。
One gigantic storm rotates counterclockwise at a constant speed of 360 kilometers per hour (225 mph), and acts much like a hurricane.
一场巨大的风暴逆时针旋转,持续风速为每小时360公里(225 mph),其作用很像飓风.
It’s called the Great Red Spot.
这被称为"大红点"。
Easily visible, it can be as wide as three times the size of Earth.
易取可见,可宽至地相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相
Jupiter’s temperature is very cold at the tops of the clouds.
木星的温度在云顶非常冷.
At its core, it is hotter than the surface of the Sun.
其核心是比太阳表面更热.
Scientists are studying the gullies at Mars Hale Crater to discover if their changing surface shapes are created by the movement of liquid water.
科学家们正在研究火星海尔火山口的海鸥,以发现其变化中的地表形状是否由液态水的运动所产生.
In some ways, Jupiter is like a mini-solar system because it is so big and has four large moons and dozens of smaller moons orbiting around it.
在某些方面,木星就像一个迷你太阳系,因为它如此之大并有4个大的月球和数十个更小的月球围绕它绕行.
It also has several thin rings at its equator.
它的赤道上也有一些细小的环.
Scientists believe that if Jupiter had become larger during its development, it could have become a star instead of a planet.
科学家认为,如果木星在发育过程中变大,它就有可能成为一颗恒星而不再是一颗行星.
Jupiter spins quite fast for such a large planet.
木星对这样一个大行星的旋转速度相当快。
One day on Jupiter is roughly ten hours.
一天在木星上大约10小时。
It takes Jupiter almost twelve Earth years to complete its orbit around the Sun.
木星大约需要12个地球年才能完成环绕太阳的轨道.
Saturn Saturn is the sixth planet of the Solar System.
土星土星是太阳系的第六颗行星.
It is easy to recognize because of its large, visible system of rings.
由于其有庞大而明显的环系,所以很容易被识别.
The rings are made up of millions of pieces of ice and frozen gases.
环由数百万块冰块和被冻结的气体所组成.
Saturn also has dozens of small moons that orbit it.
土星也有数十个小月球绕它运行.
Jupiter’s constant dust storm, the Big Red Spot, is highly visible.
木星恒定尘暴"大红点"高能见度.
Shown in their approximate size relationship, Jupiter’s four moons are named, top to bottom: Io, Europa, Ganymede and Callisto.
木星的四颗月球被命名 从上到下 木卫一、欧罗巴、甘尼梅德和卡利斯多
Saturn’s spectacular rings are mostly made of water ice.
土星的壮观地环大多由水冰所成.
Each ring averages about 30 feet in depth but some bumps and points are more than two miles high.
每个环平均深度约30英尺,但有些起伏和点高超过两英里.
Saturn is also unique for another reason.
土星也是独特的,有另一个原因.
It weighs little compared to how large it is.
与大小相较,其重量不大.
Saturn would float if a swimming pool could be made big enough to hold it.
如果游泳池足够大,土星会漂浮
Saturn spins very fast, making one day on Saturn ten and one-half hours long.
土星的自旋速度非常快,使一天在土星上持续了10个半小时长.
Uranus Uranus is the seventh planet of the Solar System and the third largest.
天王星是太阳系的第七颗行星,也是第三大行星.
It looks blue- green in color because of methane gas in its atmosphere.
它看起来是蓝色的 颜色是绿色的 因为它的大气层有甲烷气
Uranus seems to roll around the Sun because it is very tilted.
天王星似乎在太阳上滚来滚去,因为它非常倾斜.
Scientists think this might be because it bumped into another planet-sized object long ago.
科学家认为这可能是 因为它撞到另一个行星大小的物体 很久以前。
Uranus has at least twenty-seven moons, five of which are large.
天王星有至少27个月,其中5个是大月.
Scientists have also counted at least thirteen rings.
科学家也计算出至少13个环.
It takes Uranus eighty-one Earth years to go around the Sun.
天王星八十一年地球环绕太阳.
Some of Uranus’s moons and rings can be seen very clearly in this Hubble Telescope image.
在哈勃望远镜的图像中可以非常清楚地看到天王星的一些月球和环.
The bright spots on the far right of the planet are high clouds.
地球最右边的亮点是高云.
Four moons of Saturn pass in front of the planet.
地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地出地
Enceladus and Dione on the far left cast shadows while the larger Titan and the small Mimas at the far right do not.
远左侧的恩斯拉多斯和狄奥内投出阴影,而最右侧的更大型的泰坦和小米马斯则没有.
What Would You Weigh?
你会怎样?
Gravity is different on each planet, and gravity determines how much you weigh.
每个星球的重力不同,重力决定了你的重量.
If you weigh 7 0 lbs.
如果你体重为70磅
on Earth, then you would weigh: On Mercury 27 lbs.
在地球上,然后你会体重: 在水银27磅上
On Venus 63 lbs.
在金星63磅处
On the Moon 12 lbs.
在月球上12磅重的车.
On Mars 27 lbs.
在火星上27磅重的飞机上
On Jupiter 165 lbs.
在木星165磅处
On Saturn 65 lbs.
在土星65磅处
On Uranus 62 lbs.
在天王星62磅处。
On Neptune 79 lbs.
在海王星79磅处
On Pluto 5 lbs.
在冥王星5磅高处
In outer space, you’d weigh nothing!
在外太空,
Neptune Neptune is the eighth planet from the Sun.
海王星是来自太阳的第八颗行星.
Neptune and Uranus are sometimes called the twin giants because they are so much alike.
海王星和天王星有时被称作"双子巨星",因为它们非常相似.
They are about the same size and color and both are covered with thick clouds.
它们的大小和颜色都差不多 上面都是厚的云
But Neptune’s winds are the fastest in the Solar System—reaching 2,000 kilometers per hour (over 1,242 mph).
但海王星的风速是太阳系中最快的,时速达2000公里(超过1,242 mph)。
Neptune has one large moon and many smaller moons, plus several visible dust rings.
海王星有1个大月亮和多颗更小的月亮,外加多颗可见的尘埃环.
It takes Neptune about 165 Earth years to go around the Sun.
海王星绕太阳运转大约需要165个地球年.
Pluto and Other Dwarf Planets Before 2006, the space object called Pluto was the ninth planet of our Solar System.
2006年以前被称作"冥王星"(Pluto)等矮行星的空间物体是"我们太阳系"的第九颗行星.
But scientists debated and voted to create a new category called dwarf planets for space objects like Pluto.
但科学家们辩论并投票决定为冥王星等空间物体建立一个叫"矮行星"的新类别.
Dwarf planets orbit the Sun, have nearly round shapes, produce a minimum level of brightness, and are not moons.
矮行星环绕太阳运转,有近圆形外形,产生最小的亮度,不是月球.
They also do not have enough gravitational pull to sweep other space objects from their orbit.
它们也没有足够的引力从轨道上扫射出其他空间物体。
Scientists began by identifying six official dwarf planets, but some scientists wanted to classify dozens of similar space objects as dwarf planets.
科学家首先识别出6个官方矮行星,但有科学家想将数十个相类似的空间物体归类为矮行星.
Many more space objects could be counted among the dwarf planets as technology makes it easier to identify them.
更多的空间物体可以算在矮行星中,因为技术使得更容易识别出它们。
Toward the top is the “backward” storm that scientists have named Dark Spot One and lower is, Dark Spot Two.
科学家将“暗点一”命名为“暗点一”,
Their cyclonelike winds spin counter to the direction of Neptune’s orbit.
它们的气旋风向海王星轨道方向旋转
Asteroids Asteroids are rocky, metallic objects orbiting the Sun.
小行星:小行星多岩石,为绕太阳运转的金属物体.
They range in size from a few feet in diameter to hundreds of miles in diameter.
它们从直径几英尺到直径数百英里不等.
Most asteroids are found between Mars and Jupiter.
大多数小行星都发现于火星和木星之间.
Some have orbits that cross the Earth’s path, and in the past, some have even crashed into Earth.
有些轨道穿越了地球的轨道,在过去,有些轨道甚至坠入了地球。
Asteroids and other smaller objects that enter Earth’s atmosphere are called meteoroids.
小行星和进入地球大气层的其他更小的物体称为流星体.
If they survive the trip and land on the ground, they are called meteorites.
如果在旅途中幸存下来并降落在地上,它们就被称为陨石.
If they burn up before landing, they are called meteors.
如果在着陆前被烧死,它们就被称为"陨石".
Among the best evidence of an asteroid hitting Earth is the Barringer Crater near Winslow, Arizona.
小行星撞击地球的最好证据之一是亚利桑那州温斯洛附近的"巴林格克"号.
Comets Comets are composed of ice and dust and are like large dirty snowballs in space.
彗星彗星由冰和灰尘所组成并类似太空中大型的脏雪球.
They have very oval-shaped orbits.
它们有非常椭圆形的轨道.
For part of that orbit, they come close to the Sun, and then they swing far out into space.
对部分轨道来说,它们靠近太阳,然后它们向外飞去。
Some comets orbit the Sun in less than 200 years.
有些彗星在不到200年内绕太阳运转.
The most famous of these is Halley’s Comet.
其中最出名的是哈雷彗星.
It returns every seventy-six years.
它每七十六年返回一次.
Other comets take thousands of years to complete an orbit.
其他彗星需要上千年的时间才能完成一个轨道.
Comet Hyakutake, which passed close to the Earth in 1996, will return in about 9,000 years.
1996年从地球相近地相接而来相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相接相相相相接相接相接相相接相接相接相接相接相相接相接相接相相接相接相相相接相接相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相相
The comet NEAT, photographed by the WIYN telescope at Kitt Peak National Observatory in Arizona, was discovered in 200 1 by the Near Earth Asteroid Tracking system.
该彗星由亚利桑那州克特峰国家天文台的WIYN望远镜所拍摄,由近地小行星跟踪系统于2001年发现.
Satellites monitor impact tests during research into ways to prevent asteroids from colliding with Earth.
卫星在研究如何防止小行星同地球相撞时监测撞击试验。
Conclusion Humans have always wondered, “what’s happening out there in space?”
人类总是在想,“太空里发生了什么? “
For centuries, we could only guess.
几百年来,我们只能猜测。
New rockets, space probes, satellites, and telescopes show us what’s happening in our Solar System every day.
新的火箭、太空探测器、卫星和望远镜每天向我们展示太阳系正在发生的事情。
These tools have helped scientists to discover new planets, re-count moons, and see stars being born and being swallowed.
这些工具帮助科学家发现了新的行星,重新计算了月球,并看到恒星诞生并被吞噬.
They have also given us the first full-sky survey map of our universe and a direct view at the Sun.
他们也给我们提供了第一张全天候的宇宙勘测图 和太阳的直观
What will they show us next about our Solar System and beyond?
他们接下来会给我们看太阳系和太阳系以外的什么?
Glossary atmosphere (n.)
词汇氛围(不详)
a layer of gases surrounding a planet, star, or moon (p.
环绕行星,恒星,或月球(p.
12) diameter (n.)
12)直径 (n.
the length of a straight line through the center of an object (p.
直线通过物体中心(p.
23) fossil fuels (n.)
23) 化石燃料(n.)
sources of energy such as coal, oil, and natural gas that were made by the decomposition of plants and animals over millions of years (p.
由植物和动物分解而成的数百万年(p.
6) gravitational pull (n.)
6)引力拉力(n.
the force of attraction that tends to draw objects together (p.
倾向于将对象一起绘制的吸引力(p.
13) meteor (n.)
13) 流星 (n.
a meteoroid that enters Earth’s atmosphere (p.
进入地球大气层的流星体(p.
23) meteorite (n.)
23)陨石 (n.
a meteoroid that actually lands on Earth (p.
实际降落在地球上的流星体(p.
23) meteoroid (n.)
23) 流星体 (n.
a comet, asteroid, or dust particle floating in space (p.
小行星彗星或尘粒漂浮在太空(p.
23) orbit (n.)
23)轨道(n.
the path of an object revolving around another object (p.
对象围绕另一个对象旋转的路径(p.
8) orbit s (v.)
8) 轨道s(v.)
to revolve around another object (p.
以围绕另一个对象(p.
4) In July 2010, after a year-long mapping mission, the orbiting Planck Telescope of the European Space Agency (ESA) delivered its first full-sky survey of our universe.
4) 2010年7月,欧洲航天局(欧空局)轨道普朗克望远镜在进行了为期一年的测绘任务后,完成了对我们宇宙的第一次全天探测.
Planck’s mission is to measure radiation left over from the ancient beginnings of our universe so that scientists can study how it was formed.
普朗克的任务是测量我们宇宙古老起源所留下的辐射,以便科学家们研究它是如何形成的。
As Planck sweeps the sky, it also measures the temperatures, density of matter, speed, and movement of galaxies.
随着普朗克扫地取天,它也测量了星系的温度,物质密度,速度和运动.