| 单词 | filtering cup |
| 释义 | > as lemmasfiltering cup filtering cup n. (a) a cup designed to filter liquid; †(b) a device consisting of a bell jar attached to a suction pump at the side and plugged with a porous cup at the top, used to demonstrate how the evacuation of the bell jar hastens filtration (obsolete). ΚΠ 1747 T. Short Medicina Britannica (ed. 2) App. 21 Let all stand till the Water is clear, then pour all into a filtering Cup. 1795 Catal. Optical, Math. & Philos. Instruments (W. & S. Jones) 6 A filtering cup..shewing the porosity of vegetables. 1842 G. W. Francis Dict. Arts Filtering cup, a pneumatic apparatus, to show that if the pressure of the atmosphere be removed from an under surface, that the pressure still remaining on the surface above, has the effect of driving a fluid readily through the pores of such substance as it would not otherwise penetrate. 1881 Science 15 Jan. p. iii/2 (advt.) This is the only Filter having the Patent Removable Filtering Cup attached. 1920 Sugar Dec. 721/1 My present invention..has for its object to provide a filtering cup or vessel which will not only be rapid and thoroughly effective but will also be convenient in use. 1996 T. Pedersen Gypsy World vii. 62 The filtering cup on the container would purify any liquid. < as lemmas |
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