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коэффициент усадкиstresses
el. 缩窄系数; 收缩率[比]
tech. 收缩比; 收缩比率; 下沉系数; 沉陷系数; 收缩系数; 收缩率
коэффициент усадки
: 2 phrases in 2 subjects
General1
Oil processing plants1