天体的

The average field idea and the single particle model have been introduced, and the motion behaviours in large scale of beam particles have been disscussed for 2 Dimension crystallization beams in storage rings.

利用平均场概念和单粒子模型讨论了储存环中二维晶化束的大尺度运动行为，结果再现了粒子轨道的螺旋运动特征，并用天体物理学方法揭示了螺旋轨道不断进动的新运动形

Most mathematicians, theoretical physicists, and astrophysicists do what we consider their best work when they are young.

大多数数学家、理论物理学家，以及天体物理学家都在他们的早年作出了我们公认的他们最好的成就。

Astronomers and astrophysicists using Hubble data have published more than 7,500 scientific papers, on topics from the solar system to the very distant universe.

天文学家和天体物理学家使用哈勃的数据已经完成了超过7.500份论文，论文的主题涉及太阳到遥远的宇宙。

Astrophysicists working with ground based detectors at the South Pole and balloon borne instruments are closing in on such structures, and may report their findings soon.

天体物理学家利用南极的地面探测器和球体仪器，离这种结构的发现越来越近了，不久就会公布他们的成果。

Which came first, black holes or galaxies? It's been a bit of a conundrum for astrophysicists.

鸡生蛋还是蛋生鸡的争论也适用于黑洞与星系的关系，这对天体物理学家们可是一个亘古不变的谜题。

This famous object is a so-called planetary nebula that represents a phase of stellar evolution that the Sun should experience several billion years from now.

这个著名的天体之所以被叫做行星状星云是因为其代表了一个行星进化的阶段，就好比太阳形成至今几十亿年间所经历过的。

Maria taught them to use the sextant , an instrument measuring the height of the sun from the horizon, and then to calculate the position of a ship through the use of mathematics and celestial navigation .

玛丽亚教他们使用六分仪，这是一种测量太阳离开水平线高度的仪器，后来又教他们通过数学和天体导航法的应用来推算船只的位置。

RACID's are successfully employed in star tracking and celestial navigation applications where only designated stars within the canopy of space are read and processed for positional vectoring.

RACID已经成功的应用于恒星追踪，天体导航应用，此时，指定的星体可以定位引导的读取和处理。

"I would say the ice in the vicinity of the North Pole is primed for melting, and an ice-free North Pole is a good possibility," Sheldon Drobot, a climatologist at the Colorado Center for Astrodynamics Research at the University of Colorado, said by email.

科罗拉多大学天体动力学研究中心的气候学家谢而登卓伯特在一封邮件中提到：&我认为北极点周边的冰盖很有可能融化，出现一个&无冰&的北极。&

This is the website of Astrobiology, which provides overall information of astrobiology and related researches and other activities.

这是NASA天体生物学的网站，提供有关太空生物学的综合信息以及相关的研究和其他活动。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。