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变水头
hydroel.st. varying head
tech. variable head; varying water head
渗透试验变水头
eng.geol. variable head
变水头渗透试验
eng.geol. falling head
变水头: 23 phrases in 8 subjects
Drilling1
Earth sciences2
Electronics1
Engineering geology3
Hydroelectric power stations6
Oil / petroleum2
Soil science1
Technology7