n.漩涡星系

n.螺旋星云，旋涡星云

spiral galaxies───n.漩涡星系

spiral gear───n.[机]螺旋齿轮

spiral gears───n.[机]螺旋齿轮

external galaxy───河外星系

barred spiral galaxy───[天]棒旋星系

elliptical galaxy───[天]椭圆星系；椭圆星云

protogalaxy───[天]原星系

spinal canal───椎管；脊管

spinal canals───椎管；脊管

It appears as a spiral galaxy, which may be barred.───它看起来是一个旋涡星系，但可能是一个棒旋星系。

On the right, surrounded by blue spiral arms, is spiral galaxy M81.───右边被蓝色旋臂环绕的是旋涡星系m 81。

The mystery arises when one considers how a spiral galaxy rotates.───当人们考虑旋涡星系是如何转动的时候难题就来了.

This line of reasoning underlies an exciting new theory of spiral - galaxy structure.───这一推理思路构成了一种激动人心的有关螺旋形星系结构的新理论的基础.

spiral galaxy NGC 4731 lies some 65 million light-years away.───旋星系ngc 4731约在6500光年以外。

Explanation: This bright, beautiful spiral galaxy is Messier 64, sometimes known as the Black Eye Galaxy.───说明: 这个既明亮又美丽的螺旋星系名为梅西叶64(M64), 有时候也被称为是黑眼圈星系.

Explanation: Big, beautiful spiral galaxy NGC 7331 is often an analog to our own Milky Way.───说明: 巨大美丽的螺旋星系NGC7331经常被认为与我们自己的银河类似.

Explanation: This impressive color composite shows spiral galaxy M 81 across the electromagnetic spectrum.───说明: 这张令人影像深刻的彩色合成影像显示了通过了电磁波频普拍摄到的旋涡星系M81.

The mystery arises when one considers how a spiral galaxy rotates.

Explanation: This bright, beautiful spiral galaxy is Messier 64, sometimes known as the Black Eye Galaxy.

Maffei 2 is a spiral galaxy thatalso has a disk shape, but with a bar-like central bulge and twoprominent dusty spiral arms.

Big, beautiful spiral galaxy NGC 1055 is a dominant member of a small galaxy group a mere 60 million light-years away toward the intimidating constellation Cetus.

The Milky Way is a spiral galaxy, having pinwheel-shaped arms of gas, dust, and stars lying in a flattened disc, and extending directly out from a spherical nucleus of stars in the central region.

Explanation: This impressive color composite shows spiral galaxy M 81 across the electromagnetic spectrum.

Explanation: Is this a spiral galaxy ? No.

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Explanation: Big, beautiful spiral galaxy NGC 7331 is often an analog to our own Milky Way.