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单词 Whitworth
释义

Whitworth /(h)witˈwərth/ (engineering)

adjective

Denoting the standard British pre-metric screw thread, cut with an inter-pitch angle of 55º, first proposed by Sir J Whitworth (1803–87) in 1841 and still common in the USA

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更新时间:2024/11/11 7:59:51