| 单词 | buoyancy aid |
| 释义 | > as lemmasbuoyancy aid buoyancy aid n. a device or mechanism which provides added buoyancy; spec. a sleeveless jacket lined with buoyant material, esp. worn for water sports (cf. personal flotation device n. at personal adj., n., and adv. Compounds). ΚΠ 1957 Coshocton (Ohio) Tribune 19 Aug. 9/2 Organizers of a mass channel swim..ordered Marshal Sam Rocket to inspect the..swimmers for buoyancy aids including inflatable bras. 1982 Proc. Royal Soc. B. 216 366 If the elastic bulk modulus of a buoyancy aid is less than that of water then it will become less buoyant with depth in water. 1996 Paddles Nov. 16/1 Buoyancy aids..are designed to increase a conscious swimmer's buoyancy..in a rescue situation where help is close at hand. 2013 Bristol Evening News (Nexis) 25 Feb. 18 [The kayaker] was wearing a buoyancy aid and had a radio to raise the alarm. < as lemmas |
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