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6h 37min, dec 31, 1931 y - М. Кнолль и Э. Руска построили первый просвечивающий электронный микроскоп

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Электронный микроскоп. История

ByВера Черепанова
15 Nov 2017
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6h 37min, dec 31, 1931 y
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~ 93 years ago
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