Jan 10, 2021
真空管って本当に色んな形をしています。それぞれ理由があってその形をしてると思うんですが、
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seen from United States
seen from Malaysia
seen from United States
seen from United States
seen from United States
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seen from China
seen from Russia
seen from China
seen from Italy
seen from Chile
seen from Sweden
seen from Ukraine
真空管って本当に色んな形をしています。それぞれ理由があってその形をしてると思うんですが、