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noun | noun | to phrases
chalcogens nstresses
chem. элементы группы кислорода; группа кислорода
Makarov. халькогены
chalcogen ['kælkədʒən] n
chem. халькоген (vladimir_kuimov)
chalcogens: 8 phrases in 3 subjects
Chemistry1
General6
Makarov1

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