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1-羟基亚乙基二膦酸
oil, chem. 1-hydroxy-ethylidene diphosphonic acid
羟基亚乙基二膦酸
chem. hydroxyethylidene diphosphonic acid
羟基亚乙基二膦酸: 4 phrases in 2 subjects
Oil / petroleum3
Water resources1