查询词典 galaxies

The long arcs in the optical image are caused by gravitational lensing of background galaxies by matter in the galaxy cluster, the largest system of such arcs ever found.

在可见光图像中巨长的弧线是由于背景巨大质量星系群的引力透镜所导致的，如此巨大系统中的弧线还从没见过。

Such stars indicate their luminosities by their periods of variability and are used to tell the distances of distant galaxies.

通过研究这类恒星亮度的周期性变化，可以得知遥远星系的距离。

A spokesman said, in the vicinity of our universe, some galaxies being combined are most fertile in creating new ones.

一位发言人说：&在我们附近的宇宙中，有些正在融合的星系体造就新恒星的能力是最高的。&

In the spectra of most spiral and irregular galaxies,

在许多的

Shara's research interests include stellar collisions, novae and supernovae, and the populations of stars that inhabit star clusters and galaxies.

夏拉的研究兴趣包括恒星碰撞、星与超新星，以及星团和星系内恒星的数目分布。

Shara's research interests include stellar collisions, novae and super novae , and the populations of stars that inhabit star clusters and galaxies.

夏拉的研究兴趣包括恒星碰撞、星与超新星，以及星团和星系内恒星的数目分布。

And receding galaxies could mean only one thing.

后退的星系只可能表明一件事

In the Local Group, as elsewhere in the Universe, however, dwarf galaxies outnumber their larger, shapelier cousins.

在本星系群或者宇宙的其他地方，矮星系都多于形状规则的大型星系同辈。

But out of these million galaxies, how do we know which are spirals and which are ellipticals?

但是除去这数以万计的星系，我们怎么知道哪些是椭圆星系哪些是螺旋星系呢？

Furthermore, Binary stars have been neglected in most studies of the integrated light of the stellar populations with the EPS methods. However in real clusters and galaxies over 50% stars are in binaries, and binary interaction can result in some important classes of objects, such as blue straggles and subdwarf B stars (sdB, also referred as extreme horizontal branch ) which contribute significantly to the integrated light.

另外，多数演化星族合成模型在对星族进行研究时没有考虑双星作用，而在真实星团或星系中50％以上的恒星属于双星系统，双星相互作用可以产生一些重要天体，例如蓝离散星和B型亚矮星，而这类天体对积分光谱有重要影响，因此本论文研究目的之二就是在演化星族合成模型中考虑双星作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。