如此之近的距离足以为天文学家提供一块相对局部的试验田，去研究激烈的恒星形成过程，通常因为距离太过遥远，这种过程的细节很难被观测到。

This near view offers astronomers a relatively local test bed for studying intense star formation processes that are usually hard to observe in detail because of their great distance from us.

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目的明确第三脑室中间块星形细胞瘤的临床表现、诊断和手术治疗。

Objective to confirm the mass intermedia astrocytoma of the third ventricle for the clinic manifestation, diagnosis and surgical treatment in children.

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