短語詞組短語an accretion disk 吸積磐black hole accretion disk 黑洞吸積磐an external accretion disk 外部吸積磐theory of accretion disk 吸積磐理論thin accretion disk 薄吸積磐thick accretion disk model 厚吸積磐模型an ? external accretion disk 外部吸積磐black hole -accretion disk model 黑洞disk accretion 磐吸積 返回 accretion disk