The 100 billion stars of this galaxy are chiefly located in two spiral arms that extend from the nucleus . 这个星系所属的1000亿颗恒星主要分布在从核心伸展出来的两条旋臂上。
Each ring supported the others, and made the task of identifying the inner core much more difficult . 每一个小集团都支持其他的小集团，这使完成查明内部核心的任务变得困难得多。
Cut off the electricity, disrupt the core of its system, and you thrust a dagger in capitalism's heart ! 如果切断电力，破坏掉这个制度的核心，你就给资本主义的心脏插进了一把尖刀。
A hot core heater would be very useful to avoid condensation of the constituents of air at the higher mach numbers . 利用一个核心加热器，可以有效地避免空气成分在较高马赫数时发生冷凝。
It involved serious issues of strategic doctrine and went to the heart of our arms control negotiations with the soviet union . 它又涉及严重的战略理论问题，是我们同苏联进行军备控制谈判的核心。
It is the distinction between forces that accomplish change and forces that do not that is central to the idea of work . 有的力能实现变化，有的力不能实现变化，它们之间的区别正体现了功这个概念的核心。
The star to be moving rapidly, perhaps in an orbit around the densely concentrated stars of the galactic nucleus . 这颗星看来正在以高速运动着，其运动轨道大概就围绕着由高度密集的恒星所构成的银河系核心。
Yet we cannot help desiring to penetrate the secret of man's soul, the innermost nucleus which is "he" . 但是我们禁不住地期望深入到人的灵魂的秘密中去，深入到内心世界最核心的地方中去，这个地方就是“他”。
The dangling bonds associated with the dislocation core determine to a large extent the electrical and optical properties of the dislocations . 与位错核心相联系的悬空键在很大程度上决定着位错的光学电学性质。
When helium burning takes over the main burden of energy generation in the star, the core expands somewhat, and the envelope contracts somewhat . 当氦燃烧成为星体能量产生的主要来源时，核心略微膨胀，而包层略微收缩。
