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单词 half-minute
释义 half-minute
The half of a minute; a space of thirty seconds; also half a minute. b. attrib. and Comb., as half-minute gun; half-minute glass (Naut.), a sand-glass which determines the time for the running out of the log-line.
1684T. Burnet Th. Earth ii. 41 To calculate..an eclipse, to minutes and half-minutes.1708N. Frowde Life Adv. Voy. (1773) 140 Half minute Guns were fired the whole Time, and every other Honour shewn to his Memory.1717Frezier Voy. S. Sea 7 To answer the Half-minute Glass.1867Smyth Sailor's Word-bk. s.v. Glass, Half-minute and quarter-minute glasses, used to ascertain the rate of the ship's velocity measured by the log.
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更新时间:2024/9/20 6:30:33