Last Updated：2025/11/25
Sentence
天文台は分解能を高めるために、新しいエシェル回折格子を取り付けて分光器を改良した。
Quizzes for review
The observatory upgraded its spectrograph by installing new echelle gratings to improve resolution.
See correct answer
The observatory upgraded its spectrograph by installing new echelle gratings to improve resolution.
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