| 单词 | bucket-wheel |
| 释义 | > as lemmasbucket-wheel bucket-wheel n. an ancient contrivance for raising water, consisting of buckets fixed round a wheel, or attached to a rope passing round a wheel, which fill at the bottom and empty themselves into a trough at the top; also, an overshot or breast wheel operated by the impulse and weight of the water falling into the buckets or receptacles on its rim. ΘΚΠ society > occupation and work > equipment > lifting or hoisting equipment > [noun] > for raising water > wheel for raising water waterwheel1591 Persian wheel1649 sakia1687 noria1696 Egyptian wheel1793 bucket-wheel1797 tabut1836 pot-wheel1852 tympan1858 irrigation-wheel1864 spider-wheel1868 tympanum1875 society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > driven by water waterwheel1408 flood-wheel1515 breast wheel1744 overshot1760 undershot wheel1760 breast-shot1775 bucket-wheel1797 tub-wheel1815 flutter-wheel1817 danaide1825 wheel1842 reaction waterwheel1847 reaction wheel1852 tide-wheel1864 hurdy-gurdy1868 stream-wheel1875 paddle wheela1884 Pelton1885 turbine-pump1900 1797 Encycl. Brit. XVIII. 904/1 A bucket-wheel has been executed lately..of a construction entirely new. 1880 Encycl. Brit. XII. 523/1 When..the supply is from 3 to 25 cubic feet per second, it is possible to construct a bucket wheel on which the water acts chiefly by its weight. 1970 Times 23 Feb. (Canada Suppl.) p. vi/3 (caption) A giant bucket-wheel excavator scooping up oil-bearing tar sands. < as lemmas |
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