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van de Graaff
[van de Graaff 词源字典]
in reference to an electrostatic charge generator, 1934, named for U.S. physicist R.J.
van de Graaff
(1901-1967).
[van de Graaff etymology, van de Graaff origin, 英语词源]
[van de Graaff 词源字典]