Light year 或 light-year 是“光年”的意思，是用来测量恒星、星系和行星之间的天文距离的长度单位。一光年等于光在一年中所走过的距离：9.4607 × 10¹²公里，但因其包含 year，所以也会被误用为时间的单位。Light 意为“光”时，是不可数名词，因此要表示几光年，year 要用复数形式 years，这也是复合名...
A solution to this problem is still light years away. 解决这个问题的办法还要花很多时间。 Light year 跟时间无关,却可以用来表示时间,这也正是习语的常用方法,也就是是习语的比喻意义,就像 in light of,它跟“光”没关系,但它有其他用法,意为...
light-year 英['laɪt'jɪr] 美['laɪt'jɪr] 释义 n. <天>光年 实用场景例句 全部 Early light - year ( AD 319 years ) after the establishment of Zhao crown. 光 初二年 ( 公元319年 ) 称王建立后赵. 互联网 A light - year is the distance light travels in one year....
light year 英[lait jə:] 美[laɪt jɪr] 释义 n. 光年 词态变化 复数:light years; 实用场景例句 全部 光年 The nearest star to earth is about 4light yearsaway. 地球离最近的恒星大约为4光年。 牛津词典 Full employment still seemslight yearsaway....
The meaning of LIGHT-YEAR is a unit of length in astronomy equal to the distance that light travels in one year in a vacuum or about 5.88 trillion miles (9.46 trillion kilometers). How to use light-year in a sentence.
A light-year is a unit that represents the distance that light can travel in a year. 光年是一个距离单位,代表光在一年内所能传播的距离。 Even the closest stars and exoplanets are removed from our solar system by several light-years. 即使是离我们最近的恒星和系外行星也离太阳系有好几光年的距...
首先,light-years ahead本身一个短语,表示“领先数光年”,即“遥遥领先”。light years原本是一个天文术语,表示“光年”,短语中是一种比喻和夸张的用法,强调“遥遥”的概念。词典中的意思是:much more advanced than others(比其他人先进太多)。看这两个例句:①ideas that are light-years ahead of their time...
1 metre is equal to 1.0E-24 yottametre, or 1.0570008340246E-16 light year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between yottameters and light years. Type in your own numbers in the form to convert the units!
forlengthis the metre. 1 metre is equal to 1.0570008340246E-16 light year, or 56692.556267362 twip. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between light years and twip. Type in your own numbers in the form to convert the ...
As defined by the International Astronomical Union (IAU), a lightyear is the distance that light travels in a vacuum in one Julian year (365.25 days). The lightyear is most often used when expressing distances to stars and other distances on a galactic scale, especially in non-specialist ...