| 单词 | air seal |
| 释义 | > as lemmasair seal air seal n. †(a) a seal incorporating air (obsolete. rare); (b) a device or natural barrier which prevents air from entering or escaping from a container or space. ΚΠ 1853 Sci. Amer. 10 Sept. 412/4 One improvement consists in forming an air seal or packing, to separate the water above from the water below the piston. 1909 Times 25 Aug. 17/4 At the end of three hours..the can is removed and allowed to cool on a sand floor, making an air seal. 1931 Science 16 Jan. 66/2 No frictional erosion could have taken place without breaking the air-seal and allowing penetration of oxygen. 1998 A. Brookes Cladding of Buildings (ed. 3) 28 Air seals can be in the form of flexible membranes, gaskets, compressible foam strips and sealants. < as lemmas |
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