光年

Explanation : Some 60 million light-years away in the southerly constellation Corvus , two large galaxies have collided .

说明：在距离我们6，000光年远的南天的乌鸦座内，两个巨大的星系发生了碰撞。

A cosmic bubble of gas and dust, RCW 79 has grown to about 70 light-years in diameter, blown by the winds and radiation from hot young stars.

RCW79，一个由气体和尘埃组成的宇宙气泡，在星风的吹动和炽热年轻恒星的辐射的影响下，它的半径已经扩展到了大约70光年。

The Crab Nebula spans about 10 light-years.

蟹状星云的大小约为10光年。

Located about 6,500 light-years from Earth, the Crab Nebula is the remnant of a star that began its life with about 10 times the mass of our sun.

远离地球6，500光年远的蟹状星云是一颗10倍于我们的太阳重量的星的残余。

The Crab Nebula lies about 6,500 light-years away in the constellation Taurus.

蟹状星云距离金牛座大约6，500光年远。

The existence of a third magnetic pole is suggested by the range of signals emitted by the pulsar at the centre of the Crab Nebula, 6,300 light years from Earth.

距地球6300光年远的巨蟹星云中心部位的脉冲星发出的系列信号表明，第三磁极可能存在。

Caption:: The Crab Nebula is a six-light-year-wide expanding remnant of a star's supernova explosion.

公元1054年，中国天文史书上记录了一颗非常光亮的客星，我们现在知道这是一颗距离我们6500光年的恒星发生超新星爆炸产生的光芒，爆炸后的残骸现在成为了星云，这星云名为蟹状星云。

The Crab Nebula spans about 10 light-years. 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. The Crab Pulsar rotates about 30 times each second

整个蟹状星云跨越约10光年，在其正中心存在一脉冲星---有太阳一样的质量但体积只有小镇大小的中子星，蟹状星云脉冲星的自转速度约为30圈每秒。

Found in the nebula rich constellation Cygnus, NGC 6888 is about 5,000 light-years away.

NGC6888位于星云富集的天鹅座内，距离我们大约5，000光年远。

Using the Mayall Telescope at Kitt Peak and the DEIMOS spectrograph on the the Keck II Telescope in Hawaii, the researchers found previously unseen red giant stars out to a distance of at least 500,000 light years from Andromeda's center.

通过在Kitt Peak天文台的Mayall望远镜，以及夏威夷上Keck II望远镜上的DEIMOS摄谱仪，研究者们发现了距仙女座中心至少50万光年，从未见到过的红色巨大恒星。

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。