例文・使い方で印象づける「observational」の覚え方

...Refracting astronomical telescopes are now constructed on thisprinciple, it having been discovered that for observational purposesthey possess several advantages over the Galilean instrument... $Refracting astronomical telescopes are now constructed on thisprinciple, it having been discovered that for observational purposesthey possess several advantages over the Galilean instrumentの読み方$
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」

「observational」の意味・発音

いろいろなフォントで見る「observational」

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