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jan 1, 1940 - В.К. Зворыкин построил СЭМ с эффективным детектором электронов и медленным сканированием
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Электронный микроскоп. История
By
Вера Черепанова
15 Nov 2017
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606
Date:
jan 1, 1940
Now
~ 85 years ago
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