timing disk 中文意思是什麼
timing disk
解釋
定時磁盤-
Whether an entire galaxy becomes a disk is a timing issue : spiral galaxies emerge from gas that becomes rotationally supported before patches of the gas contract into stars
至於整個星系變成一個圓盤則是時機問題:螺旋星系的出現,是因為在每一小團氣體因收縮而形成恆星前,整團氣體已經成為旋轉性支撐。
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