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范德格拉夫
fàn​dé​gé​lā​fū

Van de Graaff

Definitions Defs Origin Strokes Stroke Words Sentences Sents
范德格拉夫 fàn​dé​gé​lā​fū
Van de Graaff
Robert J. Van de Graaff (1901-1967), an American physicist known for inventing the Van de Graaff generator