单词 | spiral pump |
释义 | > as lemmasspiral pump spiral pump n. ΚΠ 1728 E. Chambers Cycl. at Screw Archimedes's Screw, or the Spiral Pump, a Machine for the Raising of Water. 1815 J. Smith Panorama Sci. & Art II. 120 If we wind a pipe round a cylinder, of which the axis is horizontal, and connect one end with a vertical tube, while the other..is at liberty to turn round.., the machine is called a spiral pump. a1884 E. H. Knight Pract. Dict. Mech. Suppl. 842/1 Spiral Pump, a pump that raises its water by a spiral flange or screw, on the principle of the Archimedean screw. < as lemmas |
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