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单词 Aston, Francis William
释义

Francis William Aston

/ˈastən /
(1877–1945), English physicist. He invented the mass spectrograph (with J. J. Thomson) and eventually discovered many of the 287 naturally occurring isotopes of non-radioactive elements. Nobel Prize for Chemistry (1922).
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更新时间:2024/11/11 10:49:13