Alexander horned spheres
(Hong Kong) An informal unit of measure of area, equivalent to the size of a Victoria Park, approximately 19 hectares.
plural of Alexander horned sphere
A surname.
(travel, UK) A reduced-price fare and ticket for a journey on public transport out and back in one day.
位相幾何学の学生たちは、セミナーでアレクサンダーが示した複数の角のある球面の巧妙な構成に驚嘆した。
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DiQt
Free
★★★★★★★★★★
