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1 ene 1925 año - Сформирована группа кристаллографии при Минералогическом музее АН СССР в Ленинграде

Descripción:

Задача - исследования кварца и изготовления пьезокварцевых пластин

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Crystallography

ByArseniy Baskakov

26 feb 2020

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1038

fecha:

1 ene 1925 año

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~ 100 years ago

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