| 单词 | rope pump |
| 释义 | > as lemmasrope pump rope pump n. a pump of which the main component is a continuous piece of rope. ΚΠ 1787 J. Watt Let. 8 Aug. in J. P. Muirhead Origin & Progress Mech. Inventions J. Watt (1854) II. 222 I once thought of making it work a rope-pump. 1807 T. Young Course Lect. Nat. Philos. I. 779/2 (caption) Fig. 299. The rope pump of Vera, for raising water by means of friction: the rope is kept stretched by a pulley under the water, which is loaded with a weight, and slides in a groove. 1815 J. Smith Panorama Sci. & Art II. 146 A rope pump, which consists of a rope rapidly revolving over two pulleys, one of which is at the top and the other in the water of the well. 1996 J. P. Gee et al. New Work Order (new ed.) vi. 143 Santiago, the illiterate refiner of rope pump components..worked as a security guard six and a half days a week in a city supermarket. < as lemmas |
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