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flow duration curve
el.	流量持续时间曲线
eng.geol.	水流量历时曲线
hydroel.st.	流量历时曲线
ocean.	流量历史曲线
tech.	★ 流量过程线; 量历时曲线
flow-duration curve
hydroel.st.	流量历时曲线

flow duration curve : 6 phrases in 3 subjects

Earth sciences	1
Hydroelectric power stations	2
Technology	3