air jacket

名词 n.
中文释义

英文释义

名词 n.
  1. A lifejacket.
    — AIR-JACKET. A leathern garment furnished with inflated bladders, to buoy the wearer up in the water.
  2. An inflatable vest worn to cushion falls.
    — 1765, George Alexander Stevens, The Celebrated Lecture on Heads, London: R. Richards, Part 3, p. 16, […] our army all should wear a new uniform; all our horse infantry should wear air jackets, and all our foot cavalry should wear cork waistcoats; and then ye know why they’d be all over the sea before you could say Jack Robinson.
  3. An enclosed space containing nothing but air that surrounds something in order to provide insulation.
    — In the first Daimler gasoline engines a current of air was forced through an air jacket surrounding the cylinder by means of a rotary fan mounted on the crank shaft.

词形变化

air jackets plural airjacket alternative
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