| 单词 | central vacuum |
| 释义 | > as lemmascentral vacuum central vacuum n. chiefly North American (more fully central vacuum cleaning system, central vacuum system) a system whereby the suction power required for vacuum cleaning throughout a building is supplied from a single static unit, typically via ducts or inlets placed in each room. ΚΠ 1922 Archit. Forum Sept. 139/1 A central vacuum cleaning system..is given very careful consideration by architects and engineers in planning all types of buildings. 1964 Chicago Daily Defender 8 Sept. 20/6 (advt.) Central vacuum system, 2 family rooms (one with bar). 1990 Observer 21 Apr. 52 (advt.) Introducing Univac, a central vacuum so advanced it will change your life. 2005 E. Morrow et al. Put your House on Diet iv. 63 If you're tired of lugging a vacuum cleaner around your house, a central vacuum system may be what you need. < as lemmas |
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