单词 | screw pump |
释义 | > as lemmasscrew pump screw pump n. a pump that works on the principle of Archimedes' Screw. ΚΠ 1747 R. Campbell London Tradesman liii. 248 He makes the Screw-Pump, by some called the Pythagorean-Pump... It consists of a Pipe twisted round a wooden Cylinder. 1828 Aurora & Pennsylvania Gaz. 1 Oct. The waters..arose with such rapidity in the excavation as to require the constant use of six screw pumps, each calculated to eject a hogshead a minute. 2008 Water Environment Res. 80 764/2 The excess sludge..was manually drained..by means of a screw pump, to prevent clogging. < as lemmas |
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