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petrochemistry bolgárul

AngolBolgár
petrochemistry (the branch of chemistry that deals with petroleum)
noun
[UK: ˌpe.trəʊˈk.e.mɪ.strɪ]
[US: ˌpetro.ʊˈk.e.mɪ.striː]

нефтохимияnoun
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