单词 | planet wheel |
释义 | planet wheel (once / 909178 pages) n WORD FAMILY planet wheel: planet wheels USAGE EXAMPLESThe planet wheels till it becomes A comet, and destroying as it sweeps The stars, goes out. Coleridge, Ernest Hartley, The Works of Lord Byron. Vol. 5—Po...(2010) n an outer gear that revolves about a central sun gear of an epicyclic train Syn|Hyper epicyclic gear, planet gear, planetary gear cogwheel, gear, gear wheel, geared wheel a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion |
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