光年

The galaxy is 75 000 light-years wide and features two dusty spiral arms extending from a pronounced central bar that giveit a hook-like appearance, hence its nickname.

星系宽约7.5万光年，有2个明显的尘埃臂从其显著的核心棒延伸出去，类似一个肉钩，并由此得名。

NGC 1512 in the southern constellation of Horologium is located 30 million light-years away, relatively nearby as galaxies go, it is bright enough to be seen with amateur telescopes.

ngc 1512年在该国南部星座horologium位于3000万光年距离，相对附近星系去，它是光明的，足以看出与业余望远镜。

A barred spiral galaxy located some 30 million light years away toward the constellation Horologium, Galaxy NGC 1512 is bright enough to be seen with amateur telescopes.

NGC 1512 星系是一个位于时钟座星系里的棒旋星系，距离地球大约3000万光年。星系 NGC1512非常明亮，人们利用普通望远镜就能看到它。

At that distance, this image spans about 70 light-years.

这幅影像涵盖约七十光年的区域。

The surprise is that we are seeing dust hundreds of thousands of light years outside of the galaxies – in intergalactic space.

意外的是我们在距离星系数十万光年的星系际空间观察到了尘埃。

GJ1214 is a star five times smaller than our Sun and three hundred times less bright. Located only 40 light-years away from us, it is found to be surrounded by a super-Earth planet whose interior is likely mostly made of water ice.

恒星GJ1214，是我们的太阳的五分之一大小，而且本质上讲，亮度也暗三百倍，距离地球约40光年，被一颗表面很有可能大部分由水冰构成的行星绕转。

First swept up in 1783 by mathematician and astronomer Caroline Herschel, the dusty island universe lies a mere 10 million light-years away in the southern constellation Sculptor.

在1783年首先被数学家和天文学家卡洛琳赫歇耳发现，尘埃岛宇宙位于仅仅1000万光年之外的南方星座—玉夫座。

Unit reduction in ice consumption amount for jump drive operation per light year per skill level

每级技能减少跳跃每光年时所耗冰100单位

The new technique reduced the distance ladder to three "rungs":(1) The distance to galaxy NGC4258 is measured using straightforward geometry and Kepler's laws;(2)Cepheids in six more distant galaxies are used to calibrate the luminosity of Type Ia supernovae;(3) The Hubble constant is measured by observing a brighter milepost marker, Type Ia supernovae, in more distant galaxies hundreds of millions of light-years away, embedded in the expanding universe.

这种新技巧简化了距离跳跃为三个"阶梯"：1、星系NGC 4258的距离采用开普勒定律和简单直接的几何方法精确测量；2、在6个更远的星系中的造父变星用来校准Ia超新星的光度；3、深嵌于数亿光年外的膨胀宇宙中的星系中的Ia超新星——一种遥远而明亮的量天尺，被用于精确测定哈勃常数。

A constellation in the Northern Hemisphere between Lacerta and Perseus and south of Cassiopeia.

仙女座：北半球的一个星座，在蝎虎座和英仙座之间，仙后座以南，包括肉眼可见的大片旋涡星云，其旋涡星云距地球为1.84×105光年

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。