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периодическая система элементовstresses
gen. classification périodiques éléments
chem. tableau de Mendéléiev; classification périodique le Mendeleïev
met. classification périodique des éléments; système périodique des éléments; tableau périodique
периодическая система элементов: 11 phrases in 5 subjects
Chemistry4
Geology2
Physics1
Radio2
Technology2

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