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Polyhedra with at least seven pages to indicate the exact time of day for indoor plants
Polyhedra with at least seven pages to indicate the exact time of day for indoor plants
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机译:多面体,至少有七页,指示室内植物一天中的确切时间
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摘要
Polyhedra with at least seven pages, on which the designations of the weekdays are applied in such a way that there is a weekday on each individual page.
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