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light-year

美英

na.【天】光年

复数：light-years

light-year

light-year

权威英汉双解英-汉英-英网络释义

light-year

n.

1.光年（指光在一年中走过的距离：9.4607 × 10¹2 公里）the distance that light travels in one year, 9.4607 × 10¹2 kilometres

2.[pl]很长时间；很久a very long time

光年

光字的解释---在线新华字典 ... 光能〖 luminousenergy;lightenergy〗光年〖 light-year〗光谱〖 opticalspectrum〗 ...

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Dreams seem always loom at the other side of the Galaxy , hundreds and thousands of light-year away from us. is that so far ?

梦想永远是遥遥地偶尔出现在银河的那一端。那几万光年，真的是那么长、那么远么？

3

At present , the Earth has surrounded by a 50 light year-wide "shell" of radiation from analogue TV , radio and radar transmissions, he said .

他说，地球目前裹着一层由模拟电视、无线电和雷达传输辐射构成的 50 光年厚的外壳。

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Within just a light-year of the black hole swarm more than 100 , 000 other stars caught far more firmly in its grip.

仅在黑洞的一光年范围内就云集着另外十多万颗恒星，处在它更牢固的掌控之中。

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One light year is the distance that light travels in a year .

一个光年是光在一年移动的距离。

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A light-year is the distance light travels in a year , or roughly 6 trillion miles (10 trillion kilometers ).

光年是指光传播一年时间的距离，相当于 10万亿公里（6万亿英里）。

8

Know astronomical unit and light year are used for expressing the distance between celestial bodies .

知道天文单位和光年是用来丈量天体之间距离的单位。

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light year , which is the distance traveled by light in one year . note that light year is a distance scale , not a time scale.

为量度单位，一光年是光在真空中行走一年的距离，紧记光年是距离单位而不是时间单位。

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Both are planetary nebulae , gaseous shrouds cast off by dying sunlike stars , and are similar in physical size , at a light-year or so across.

都是行星状星云，气体外壳都是由濒临死亡的恒星吹出，在物理大小上类似，涵盖大约一光年左右。

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The monster , on the right , is actually an inanimate pillar of gas and dust that measures over a light year in length .

右边的怪物，实际上是无生命的气体和尘埃柱，据测长度超过一光年。

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Through the millions upon millions light-year shining, is I to you indifferent thoughts .

穿越了亿万光年的照耀、是我对你不动声色的思念。

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A light-year love already has come to an end , how to let we die of love rebirth ?

一光年的爱恋已到了尽头，如何让我们死去的爱重生？

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This image spans about 50 light-years in the constellation Monoceros , at the 3 , 000 light-year estimated distance of the Rosette Nebula .

这张影像位于麒麟座，横跨约 50 光年，美丽的玫瑰星云距离我们约 3,000 光年。

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Matese estimates Nemesis is 25, 000 AU away (or about one-third of a light year).

玛提斯认为 “复仇者 ”距太阳有 25000 个天文单位（或者说三分之一光年）。

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Its bright ring with pearls of glowing gas is half a light-year across.

其明亮的发光气体珍珠环直径大约有半个光年。

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A light-year is the distance light can travel in one year at a speed of 186, 000 miles a second, or about 6 trillion miles .

一光年就是光以每秒 18.6万英里每秒的速度传播一年所走的距离，这个距离大概有 6万亿英里。

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The sea-sponge-like Crab Nebula is a 6-light-year-wide remnantof a supernova that exploded in 1054 Earth time .

海绵状的蟹状星云是在地球时间 1054 年时，超新星爆炸产生的 6 光年宽的残留物。

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And one light year is the distance that travels in one year .

一光年就是光一年所跑的距离。

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A light-year is the distance light travels in one year at a speed of 299, 792 kilometers per second .

一光年是光以每秒 299792 公里的速度在一年中所走过的距离。

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A light-year is away from me already .

已经远离我一光年。

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