1. The energy release can make accretion disks formidable power sources. �������ͷ�ʹ�����̳�Ϊ����������Դ��
2. In fact, this process of accretion is more efficient at releasing energy than even nuclear processes. ��ʵ�ϣ����־ۼ����̵������ͷű�ԭ�����ͷŹ��̸�����Ч��
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n.
1. an increase by natural growth or addition
2. something contributing to growth or increase
3. (astronomy) the formation of a celestial object by the effect of gravity pulling together surroundin
4. (biology) growth by addition as by the adhesion of parts or particles
5. (geology) an increase in land resulting from alluvial deposits or waterborne sediment
6. (law) an increase in a beneficiary's share in an estate (as when a co-beneficiary dies or fails to m