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单词 rotochute
释义

rotochute

/ˈrəʊtə(ʊ)ʃuːt/
noun
A mechanical device for slowing the speed of an object falling through the air or through water, consisting of a set of blades that rotate as a result of the downward motion; a buoy or other object fitted with such a device.

Origin

1940s (in an earlier sense). Apparently from roto- + -chute, although in sense 1 the semantic motivation is unclear.

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更新时间:2024/11/14 20:44:23