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discharge section
hydroel.st. 过水截面
plast. 螺杆卸料段
tech. 过水面积; 过水断面; 测流段; 排水沟断面
discharge section
: 12 phrases in 8 subjects
Bridge construction2
Desert science1
Earth sciences1
Engineering geology1
Hydroelectric power stations2
Metallurgy1
Plastics1
Technology3