nebula

美 [?nebj?l?] 　英 [?nebj?l?]

• n.【天】星云；【醫(yī)】角膜翳
• 網(wǎng)絡(luò)噴霧劑；云翳；角膜云翳

詞形變化

復(fù)數(shù)：nebulas  復(fù)數(shù)：nebulae  

英漢雙解

英漢解釋

n.	1. 【天】星云 2. 【醫(yī)】角膜翳

英英解釋

n.	1. [Astronomy]a very large cloud of dust and gas that exists in outer space 2. [Medical & Healthcare]a faint cloudy area or scar on the cornea of the eye

例句

Infrared observations indicate that this nebula may contain complex carbon molecules known as PAHs.

紅外觀測器還發(fā)現(xiàn)這個星云可能含有叫作多環(huán)芳烴的復(fù)雜碳分子。

Previously, almost all solar systems seemed to be engulfed by a nebula and there was very little black in the sky around you.

以前，差不多所有恒星系都在星云之中，只有少量星空是黑暗的。

Most scientists believe that the solar system formed from a Nebula of gas, dust and ices, that turned into a disk around the developing sun.

大部分科學(xué)家認(rèn)為太陽系是由包含氣體、星塵和冰的星云構(gòu)成，它們像圓盤一樣圍繞在膨脹的太陽周圍。

Few astronomical sights excite the imagination like the nearby stellar nursery known as the Orion Nebula.

很少有天文景觀能像這個鄰近的星星育嬰房-著名的獵戶座星云-激發(fā)著人類的想像力。

The name stuck even though the opposite turned out to be true: this type of nebula consists of gas molted from dying stars.

這個名字從此流傳下來，即使事實(shí)真相剛好相反：這類星云是由瀕死恒星所崩落的氣體構(gòu)成的。

Explanation: One of the most identifiable nebulae in the sky, the Horsehead Nebula in Orion, is part of a large, dark, molecular cloud.

解說：這是天空中最易辨認(rèn)的星云之一。獵戶中的馬頭星云是一個巨大的黑暗分子云的一部分。

Pictured above is one of several striking dust pillars of the Eagle Nebula that might be described as a gigantic alien fairy.

上圖為鷹狀星云若干突出的塵埃柱之一，就像是一個巨大的外星精靈。

The dark shape was once assumed to be an obscuring dust cloud seen in silhouette against the bright reflection nebula.

在過去，這個暗色天體曾被認(rèn)為是個塵埃星云，因?yàn)?/c>遮掩了后方明亮反射星云的光，而以剪影的形式現(xiàn)蹤。

It is one of the best examples of a planetary nebula and a favorite target of amateur astronomers.

它是行星狀星云的最好范例之一，也是業(yè)余天文愛好者最喜歡觀測的目標(biāo)之一。

l Nebula (plural nebulae) was the word once used for and fuzzy patch of light in the night sky.

l星云這個名稱，過去曾經(jīng)用來泛指夜空中那些發(fā)亮的小塊區(qū)域。

The general shape of the average nebula is that of a thin circular disk somewhat thick in the center.

星云最常見的形狀是中間較厚邊緣較薄的圓盤。

In the nebula's very center lies a pulsar: a neutron star as massive as the Sun but with only the size of a small town.

在星云的正中心有一個脈沖星：一個中心星，它擁有和太陽類似的質(zhì)量而只有一個小村莊那么大。

It is within this sort of psychic nebula that the sense of core weight and flowering lightness originate.

核心重量跟開花的輕盈，就開始于這種心理的朦朧星云的范圍內(nèi)。

So most people, you know, kind of have no idea of the difference between like, an emission nebula and a planetary nebula.

這和實(shí)際的頻率和規(guī)模幾乎是一樣的。大多數(shù)人都分不清發(fā)射星云和環(huán)狀星云之間的區(qū)別。

A bit of mould is a pleiad of flowers; a nebula is an ant-hill of stars.

一粒霉菌是一簇美不勝收的花朵，一撮星云是無數(shù)天體的蟻聚。

About 5 light-years long and a mere 800 light-years away, the Pencil Nebula is only a small part of the Vela supernova remnant.

約5光年長，僅800光年遠(yuǎn)，鉛筆星云是船帆座超新星殘骸的一小部分。

In the nebula's very center lies a pulsar: aneutron star as massive as the Sun but with only the size of a smalltown.

在星云的正中心有一個脈沖星：一個中子星，它擁有和太陽類似的質(zhì)量而只有一個小村莊那么大。

Like brush strokes on a canvas, ridges of color seem to flow across the Lagoon Nebula, a canvas nearly 3 light-years wide.

就如同畫布上的筆觸，濃重的色帶流過瀉湖星云，而這張畫布幾乎有3光年寬。

Were the Tarantula Nebula at the distance of the Orion Nebula -- a local star forming region -- it would take up fully half the sky.

假如狼蛛星云在獵戶座星云——一個本地（銀河系內(nèi)）恒星形成區(qū)——的位置上，它將占據(jù)半個天空。

Messier 27 (M27) is an excellent example of a gaseous emission nebula created as a sun-like star runs out of nuclear fuel in its core.

Messier27（M27）是個氣體發(fā)射星云的典型例子，它是由于類似太陽的恒星耗盡了其核心的核燃料而產(chǎn)生的。

Many objections can be raised to this picture of planetary nebula formation.

形成行星狀星云的這一圖像可能會引起許多異議。

The Great Nebula is a cloud of glowing gas centered on four hot, blue stars located about 1, 500 light-years from the earth.

這個大星云是以離地球大約1500光年的四顆很熱的藍(lán)星為中心的發(fā)光氣體云。

Also visible, near the bottom of the image, is ten light-year long pillar sometimes dubbed the Fairy of Eagle Nebula .

此外，靠近影像底部有十根長度將近一光年的氣柱，它們有時被戲稱是老鷹星云的仙女。

Explanation: Connecting the Pipe Nebula to the bright star Antares is a flowing dark cloud nicknamed the Dark River.

說明：連接煙斗星云和明亮的心大星的是一條黑暗的云帶，被昵稱為暗河。

Explanation: By starlight this eerie visage shines in the dark, a crooked profile evoking its popular name, the Witch Head Nebula.

女巫頭星云得名于它那在黑暗中時隱時現(xiàn)的陰森的面容，它那畸變得外形讓它得到了這么一個外號。

An unexpectedly varying Crab Nebula might have affected any research that used the Crab as a standard or a calibration tool.

而現(xiàn)在，突如其來的蟹狀星云輻射波動現(xiàn)象必將影響任何一個將其作為標(biāo)準(zhǔn)或校準(zhǔn)工具的研究項(xiàng)目。

This radiation and solar wind began to push out the remaining dust and gas of the nebula, sweeping the Solar system clean.

這些太陽和輻射能量將星云殘馀的塵粒和氣體掃蕩一空，留下一個純凈的太陽系。

Explanation: The sands of time are running out for the central star of this hourglass-shaped planetary nebula.

說明：在這個沙漏狀的行星狀星云中，時間之砂正從中央的恒星之中流失殆盡。

Explanation: In one of the brightest parts of Milky Way lies a nebula where some of the oddest things occur.

說明：在銀河系內(nèi)最明亮的部分之一，有一個星云那里正發(fā)生著一些最奇怪的事情。

They tower above the surface of a molecular cloud on the edge of the nebula.

它們從星云底部的一片分子云表面聳立而出。

Just below the Southern Cross on the far left is the dark Coal Sack Nebula, and the bright nebula on the far right is the Carina Nebula.

南十字座左下方的是黑暗的煤袋星云，而最右側(cè)明亮的星云是船底座星云。

Each dragon tends to observe a particular nebula and will eventually change their colors and patterns to match it.

每條龍都有自己觀察的特定星云，并且改變本身的顏色和圖案好配合它。

Many famous sites in our Galaxy are visible, including the Pipe Nebula and the Dark River to Antares, seen to the right of the Milky Way.

圖中還能看到銀河系中的許多著名景點(diǎn)，包括煙斗星云和流向心宿二的暗河，它們就在銀河的右邊。

The material of this nebula was more than 99% hydrogen and helium, the two simplest elements.

星云中含有超過99%氫和氦，這些元素在宇宙形成之初就已經(jīng)存在。

This Hubble Space Telescope image reveals "The Cat's Eye Nebula" to be one of the most complex "planetary nebulae" known.

哈勃望遠(yuǎn)鏡拍到的這張“貓眼狀星云”是當(dāng)前所知最復(fù)雜的“行星星云”之一。

Explanation: Bright blue stars are still forming in the dark pillars of the Eagle Nebula.

說明：明亮的藍(lán)色恒星仍不停地在老鷹星云內(nèi)黑暗氣柱中形成。

This new Hubble photo is but a small portion of one of the largest seen star-birth regions in the galaxy, the Carina Nebula.

這幅哈勃最近拍攝的照片只是星系中最大規(guī)模的可見恒星誕生區(qū)域-船底座-之中一小部分。

If the cloud is visible, we call it a nebula. An example is the Eagle nebula below.

假若這些星際物質(zhì)可以看得到，我們便稱之為星云，下圖是著名的鷹星云

As if to don a crown of heavenly jewels, the Cone Nebula rises 7 light-years into the Monoceros constellation.

麒麟座內(nèi)升起的錐狀星云，高度達(dá)到7光年，外形好似一個鑲滿寶石的王冠。

You know, they say that you can see the Crab Nebula. Wow, look. . .

你知道嗎，據(jù)說可以看到蟹狀星云…哇，你看。

In the heart of monstrous Tarantula Nebula lies huge bubbles of energetic gas, long filaments of dark dust, and unusually massive stars.

在巨大的蜘蛛星云心臟地帶，存在著活動劇烈的氣泡，長絲狀暗塵云，和不尋常的大質(zhì)量恒星。

To the left of the Horsehead Nebula, visible as the small dark indentation near the image top, is the photogenic Flame Nebula.

在馬頭星云的左部，在圖片的頂部附近可以看到細(xì)小黑暗的鋸齒狀物，那就是上鏡的火焰星云。