英语词汇“pound lock”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pound lock
释义	pound lock noun Fuller term for lock¹ (sense 2 of the noun).Exeter had been linked to Topsham by a new cut in 1564-6, certainly the first recorded use of the pound lock, the critical technology for inland navigation.... Building on the steady growth of river navigation in the seventeenth century, ‘dead-water’ canals using pound locks were being built in Ireland in the 1730s. Origin Late 18th century: pound from pound³, in the sense 'body of still water, pond'.
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pound lock