Structure and dynamics of galaxies are reviewed from the point of galactic formation and evolution scenario.
从星系形成和演化的角度出发，对星系结构和动力学进行粗略的评述。
Mergers cause gases to flow towards the galactic center, which can trigger phenomena like rapid star formation.
合并导致气体流向星系中心，从而触发象快速的恒星形成一类的现象。
The study of such properties will help astronomers to test cosmological models that predict galactic structure formation.
这些性质的研究将帮助天文学家测试预测星系结构形成的宇宙学模型。
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