| 单词 | filtering bed |
| 释义 | > as lemmasfiltering bed filtering bed n. a layer of sand, gravel, or other porous material serving as a filter; a pond or tank incorporating such a layer; = filter bed n. at filter n. Compounds 2. ΚΠ 1816 J. Cleland Ann. Glasgow I. 398 From the nature and extent of the filtering beds, they were apt to fill up, and thereby become expensive in operation. 1908 Westm. Gaz. 24 Jan. 5/4 The filtering-beds of the New River works at Hornsey. 1944 Ulster Jrnl. Archæol. 7 49 The old ‘Basin’ and filtering bed have now become the Armagh Swimming Baths. 2015 S. C. Moldoveanu & V. David Mod. Sample Prepar. Chromatography iv. 95/1 Other porous media are made from finely divided particles forming a filtering bed. < as lemmas |
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