headwater
n. 上游源头
例句
The eastern Qinghai Plateau is the headwater area for many large Asiatic rivers.
青藏高原东部是亚洲一些大河的发源地。
Comparison of leaf decomposing rate in a headwater stream in Xiangxi River catchment.
香溪河流域河流中树叶分解速率的比较研究。
The design considers the integral effect of the upstream headwater channel and downstream scout gallery.
本设计考虑了上游引水渠和下游冲沙廊道布置对漏斗水流整体的影响。
