| 单词 | epicyclic gear |
| 释义 | epicyclic gear (extremely rare) n WORD FAMILY epicyclic gear n an outer gear that revolves about a central sun gear of an epicyclic train Syn|Hyper planet gear, planet wheel, 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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