celestial spheres
(idiomatic, US) To take a customary action to ward off some misfortune that is believed to be attracted by a presumptuous statement.
plural of celestial sphere
plural of angucycline
(physics) The measurement of paramagnetic, diamagnetic or ferromagnetic susceptibility
古代の天文学者たちは、天球が星や惑星の運行を支配していると信じていた。
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