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单词 θ191801
释义
society > communication > indication > signalling > audible signalling > signalling with other sounding instruments > [noun] > hooter or siren (5)
whew1869

dialect. A factory hooter.

hooter1878

One who or that which hoots. A steam whistle or siren; esp. one at large works, sounded as a signal for beginning or ceasing work.

siren1879

An instrument, made on a similar principle but of a larger size, used on steamships for giving fog-signals, warnings, etc. Also, more generally, a…

wave-siren1881

a form of the siren, n. 7 in which a current of air is driven through a narrow slit against an undulatory curve on the periphery of a cylinder or…

siren alarm1950

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更新时间:2025/1/11 13:35:43