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Results:
radius vector : 1）動径
radioreceptor : 1）ラジオレセプター
radio beacon : 1）無線標識[局]
radiometer : 1）ラジオメーター、放射計
rainy season : 1）【気象】梅雨
radiotracer : 1）放射性トレーサ
radiometry : 1）放射測定
radioscopy : 1）放射線（X線）透視による検査
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radius vector

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