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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 янв 1952 г. - Technetium is discovered in S-type red giants
Описание:
by Paul. W. Merrill
Добавлено на ленту времени:
TC99m
By
Caitlin
24 окт 2017
0
0
625
Дата:
1 янв 1952 г.
Сейчас
~ 73 г назад
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