radio wave spectrum 中文意思是什麼
radio wave spectrum
解釋
無線電波譜-
The problem is that the search has been restricted to the thin sliver of the radio - wave spectrum in which an alien beacon seems most likely to appear
問題在於這種搜尋被限制在最有可能出現外星人信息的狹窄的無線電波譜上。
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