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spiral flow
hydraul. 螺形流
plast. 螺旋形流动
tech. 弯道水流; 螺旋流动; 螺旋流; 螺线流; 涡流
spiral flow: 29 phrases in 7 subjects
Ecology2
Engineering geology1
Mechanics1
Oil / petroleum2
Plastics3
Technology18
Water resources2