| 单词 | air vent |
| 释义 | > as lemmasair vent air vent n. an opening, either natural or man-made, that allows air to pass out of or into a confined space. In quot. 1733: such an opening in the swim bladder of a fish. ΚΠ 1733 S. Humphreys tr. N. A. Pluche Spectacle de la Nature I. ii. xiii. 141 They [sc. fish] ought to swell and contract themselves proportionable to their intended Elevation or Descent, and to be able properly to open or close the Air-vent [Fr. robinet d'air]. 1854 E. Ronalds & T. Richardson Knapp's Chem. Technol. I. 249 The outside walls are built hollow, having an air-vent 3 inches wide. 1938 J.-B. O. Sneeden Introd. Internal Combustion Engin. (new ed.) x. 171 A small air vent or blow-off valve should be placed on the top tank of the radiator to prevent the pressure rising in the cooling circuit. 2002 J. Cartwright White Lightning xii. 96 The little volcanic air vents that erupt in the sand as the waves roll back. < as lemmas |
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