elliptical rate 中文意思是什麼
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By studying the inner regions of nine elliptical galaxies with chandra, scientists can now estimate the rate at which gas is falling toward the galaxies ' supermassive black holes
科學家使用錢德拉研究了9個橢圓星系的內區,估計出了星系中心特大質量黑洞的氣體下落速率。
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