1.
The Crab Nebula lies about6,500 light-years away in the constellation Taurus.
蟹状星云距离金牛座大约6,500光年远。
2.
We have identified the Crab Nebula as the debris of this explosion.
我们已证明蟹状星云就是这次爆炸的遗迹。
3.
In fact, the cosmic Crab is now known to be a supernova remnant, an expanding cloud of debris from the death explosion of a massive star.
实际上,现在我们知道蟹状星云是超新星爆发的遗迹,即一个巨大恒星死亡后爆炸的残屑云。
4.
The spooky blue interior glow is emitted by high-energy electrons accelerated by the Crab's central pulsar.
鬼魅的蓝色内部光线是由被蟹状星云中心脉冲星加速了的高能量电子发出的。
5.
The quality or condition of being nebulous.
星云状态星云的性质或状态
6.
Planetary nebulae are a type of isolated gaseous nebulae possessing a fair degree of bilateral symmetry.
行星状星云是一类孤立的气体星云，具有相当程度的双侧对称性。
7.
The spiral nebulae were scratches left by the grinder.
螺旋状的星云是研磨者所留下的痕迹.
8.
The nebulous, luminescent cloud containing the nucleus and constituting the major portion of the head of a comet.
彗发星云状的发光云体包括彗核、彗星头部的重要部分
9.
The general shape of the average nebula is that of a thin circular disk somewhat thick in the center.
星云最常见的形状是中间较厚边缘较薄的圆盘。
10.
Planetary nebulae are not as airy and tranquil as their images suggest.
行星状星云并不如影像中所显现的那麽飘逸宁静。
11.
Many objections can be raised to this picture of planetary nebula formation.
形成行星状星云的这一图象可能会引起许多异议。
12.
These unusual celestial bodies are composed of single or multiple nebulous patches, some nearly stellar in appearance.
这些异常天体，由单个或多个星云状斑组成，有的外形近于恒星。
13.
PARABORBOROPACTUS GEN. NOV.,WITH DESCRIPTION OF THREE NEW SPECIES OF CRAB SPIDERS FROM XISHUANGBANNA, YUNNAN,CHINA (ARANEAE, THOMISIDAE)
中国云南西双版纳蟹蛛一新属及三新种描述(蜘蛛目,蟹蛛科)(英文)
14.
New Gypsophila paniculata Cultivars ‘Yunxing 17’ and ‘Yunxing 23’
满天星新品种‘云星17’和‘云星23’
15.
The fourth sign of the zodiac in astrology.
世蟹宫占星术中黄道的第四宫
16.
Study on feeding habit and nutrient level of Portunus argentatus, P.sanguinolentus and Charybdis feriatu in Fujian sea area
福建海区拥剑梭子蟹、红星梭子蟹和锈斑?的食性与营养级研究
17.
All the matter of the galaxy was originally a spherical cloud of gas from which stars were condensing out.
银河系中所有的物质最初都是球状气体云，恒星正是从中凝聚而成。
18.
The filaments are expanding into space at a speed of roughly 5,000 kilometers per second.
这些纤维状星云物质以每秒大约5000公里的速度向宇宙空间扩展。