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двойное соединениеstresses
chem. composé double (напр. двойная соль)
met. combinaison binaire
tech. composé binaire; Compose binaire
двойное соединение: 19 phrases in 9 subjects
Chemistry5
Electronics6
Fencing1
Forestry2
Hydraulic engineering1
Mechanic engineering1
Mining1
Radio1
Technology1