星云的

Of the many excellent Rosette Nebula pictures submitted to APOD editors, this view seemed most appropriate, with a long stem of glowing hydrogen gas in the region included in the composition.

在众多APOD编者拍摄到的美妙玫瑰星云影像中，这张影像是最合适的，在这张合成影像中由一条炽热氢气形成的长梗。

Anyone with a good pair of binoculars, however, can see this Whirlpool toward the constellation of Canes Venatici. M51 is a spiral galaxy of type Sc and is the dominant member of a whole group of galaxies.

但如果有人的眼睛足够好就可以向Canes Venatici星群眺望看见它。M51是一种Sc形态的螺旋状星云并且是整个星系中的领导成员之一。

The familiar eyeball shape of the Helix Nebula shows only two dimensions of this complex celestial body.

熟悉的眼球形状的螺旋星云显示只有两个层面对这一复杂的天体。

"Dark Nebula - or Extreme Labyrinth as I like to call it - is one of the best ball rollers out there."

&暗星云-或极端的迷宫，因为我喜欢把它称为-是最好的球滚子之一了。&

Many tiny planetary nebulae have quite high surface brightnesses.

许多小的行星状星云有较高的表面亮度。

A planetary nebula represents the final stage in the evolution of a star similar to our Sun.

行星状星云是类似于太阳的恒星的演化归宿。

In fact, 21st century astronomers would classify it as a Planetary Nebula, but it's not a planet either, even though it may appear round and planet-like in a small telescope.

事实上，21世纪的天文学家将该天体归类为行星状星云，但是它也不是一颗行星，尽管通过小型望远镜看，它的外观可能呈圆形、类行星状。

Well, 20th century astronomers would classify it as a Planetary Nebula ... but it's not a planet either, even though it may appear round and planet-like in a small telescope.

在21世纪，天文学家会将它分类为行星状星云，但是实际上它也不是行星，只是用小型的望远镜观测时，它具有行星的圆盘状外观而已。

At the end of its life, a star with a mass less than eight times that of the Sun will blow its outer layers away, giving rise to a planetary nebula.

一个质量少于太阳8倍的恒星，在其演化的最后时期，将褪去其外层气壳，并形成行星状星云。

The Tarantula is situated 170,000 light-years away in the Large Magellanic Cloud in the Southern sky and is clearly visible to the naked eye as a large milky patch.

它距我们17万光年，位于南方天空大麦哲伦星云内，它清晰地显现出赤裸的星核好像一个巨大的乳白色补丁。

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。