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二氧化锰 èryǎnghuàměngstresses
gen. двуокись марганца
chem. диоксид марганца
tech. перекись марганца; пиролюзит; хлористый марганец
二氧化锰MnO2 èryǎnghuàměng
tech. двуокись марганца
二 氧化锰: 9 phrases in 4 subjects
Chemistry3
General2
Oil processing plants1
Technology3

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