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退水曲线
el.	recession hydrograph
hydroel.st.	depletion curve; recession curve; falling curve; falling line
tech.	flow recession curve; recession limb; water-reducing curve
退水〔潮〕曲线
nat.sc.	recession curve

退 水曲线: 19 phrases in 4 subjects

Ecology	1
Engineering geology	2
Hydroelectric power stations	3
Technology	13