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单词 hallwachs effect
释义 hall·wachs effect
\ˈhälˌväks-\ noun
Usage: usually capitalized H
Etymology: after Wilhelm Hallwachs died 1922 German physicist
: a photoelectric effect in which a negatively charged body in a vacuum is discharged upon exposure to ultraviolet radiation
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更新时间:2024/9/22 7:27:58