《Tetrabiblos》The Periodical Divisions Of TimeClaudius Ptolemy（Ashmand 英譯 1822）
But the period, at which the event will become more strongly evident, is shown by the relative positions of the annual and monthly signs towards the places wherein the causes exist, and also by the ingresses of the planets.[282] The mode in which the Sun and Moon may be disposed, in reference to the signs relating to annual and monthly periods, is also indicative.
段落 tetra-4-theperiodi-40public-domain (Ashmand 1822)
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