《Tetrabiblos》The Genus, Class, Or Kind, Liable To Be AffectedClaudius Ptolemy（Ashmand 英譯 1822）
This distinction is made by means of the conformation and peculiar properties of those signs in which the place of the eclipse, and the places of such fixed stars and planets, as are in dominion according to the actual sign of the eclipse, and that of the angle before it, may be found.
段落 tetra-2-thegenuscl-2public-domain (Ashmand 1822)
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