A device for regulating the passage of air, heat, or smoke, esp. in a domestic fire grate or central heating system, consisting typically of a…
| 单词 | θ102753 |
| 释义 | the world > space > relative position > closed or shut condition > that which or one who closes or shuts > [noun] > that which closes an aperture > means of preventing passage of gas or liquid (12) register1612 A device for regulating the passage of air, heat, or smoke, esp. in a domestic fire grate or central heating system, consisting typically of a… water seal1847 a seal that uses water to prevent the escape of gas or liquid; spec. = trap, n.1 8a. water lock1863 Any of various devices or contrivances for locking water into or out of something, or in which water is used to seal something off. seala1884 technical (transferred use of sense 2.) gen. Any means of preventing the passage of gas or liquid into or out of something, esp. at a place where… Subcategories:— substance (5) — for preventing water (2) — quantity of water or tar to prevent gas-leak (1) |
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