Last Updated：2025/11/21
Sentence
研究者たちは、太陽フレアが高度約50キロ（31マイル）から外側へ500キロ（310マイル）以上にわたって広がる地球大気の部分である電離層を乱すときの無線信号の変動を観測した。
Quizzes for review
Researchers monitored radio signal variations as solar flares disturbed the ionosphere.
See correct answer
Researchers monitored radio signal variations as solar flares disturbed the ionosphere.
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Related words
ionosphere
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