星系

The observational study of extragalactic H2O megamaser sources and molecular emission lines associated with AGNs is a very efficient tool to investigate characteristics of certral sources in AGNs and circumnuclear toruses of gases and dusts.

对与活动星系核成协的河外超脉泽源及分子谱线的观测和研究是探测和研究活动星系核核区中央源、拱核气体和尘埃环性质的非常有效的工具。

Relativistic jets are found in many radio-loud quasars and BL Lac objects. We explored the jet formation mechanisms for quasars, and found that the jets may probably be accelerated from the coronae above the disks at least in some active galactic nuclei with strong jets.

许多射电类星体和BL Lac天体已观测到相对论性运动喷流，我们研究了活动星系核的喷流形成机制，我们的结果表明至少部分活动星系核的喷流是从吸积盘的冕区被加速的。

Covert cynosural fields can now be activated in cynojammed systems allowing black ops ships to jump or bridge other covert ops ships into the cynojammed system.

隐秘诱导立场现在可以在有诱导立场干扰器的星系开启，使得黑隐可以跳跃或为其他隐形船开启隐秘跳跃通道进入反诱导的星系。

"The extragalactic background is very faint, and it is easily confused with the bright emission from the Milky Way," says Ackermann. With the background isolated in their studies (these background measurements are published in the 12 March edition of the journal Physical Review Letters ), Ajello and Ackermann then began to compare it with observations of relatively nearby active galaxies with black holes (called active galactic nuclei, or AGN).

系外伽玛射线背景是非常微弱的，而且很容易受到系内辐射源的干扰，（ Ackermann 等人对背景值的测量公布于3月12日的《物理评论快报》上）， Ajello 和 Ackermann 同时将这个测量结果与附近已被观测过的相对活跃的星系黑洞参数进行比较，这些参照对象有个专有名词，称为活动星系核， AGN 。

He is right, it is a couple of interesting galaxies—surrounded by tens of smaller, fainter, galaxies.

他是对的，是几个有趣的星系——被几十个更小、更暗的星系包围着。

In addition the images of some of the lensed galaxies appear red — the large distance to these galaxies introduce redshift, which shifts their light to the red part of the spectrum.

此外，该图像部分的透镜星系出现红色-大的距离，这些星系的红移介绍，轮班其光红色部分频谱。

Dwarf galaxies like the Large Magellanic Cloud are considered to be the primitive building blocks of larger galaxies.

矮星系一样，大麦哲伦云被认为是原始大厦较大的星系。

No. Actually, it is theLarge Magellanic Cloud, the largestsatellite galaxyof our ownMilky Way Galaxy.

不，事实上，它是大麦哲伦星系(Large Magellanic Cloud， LMC)，也是我们银河系最大的卫星星系。

Irregular galaxy NGC 55 is thought to be similar to the Large Magellanic Cloud.

不规则星系NGC55被认为结构与大麦哲伦星系类似。

Located about 100 million light-years away in the constellation Piscis Austrinus, the galaxy interaction may ultimately lead to the three reforming into two larger star cities.

这三个星系位于南鱼座，离我们约1亿光年，引力相互作用最终可能导致三者合并为两个大星系。

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。