beartrap gate
名词 n.
英文释义
名词 n.
- A waterflow/impoundment hydraulically-operated rising double-leaf floodgate used for weirs and dam spillways, and canals, to control waterflow across the top of the gate in the channel.
词源
From beartrap + gate. From being a gate reminiscent of the operation of a beartrap.
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数据来源: Wiktionary