| 单词 | rotary wing |
| 释义 | rotary wingnoun Aeronautics.an airfoil that rotates about an approximately vertical axis, as that supporting a helicopter or autogiro in flight. Origin of rotary wingFirst recorded in 1930–35 Words nearby rotary wingrotary pump, rotary shutter, rotary-till, rotary tiller, rotary valve, rotary wing, rotate, rotating, rotation, rotational molding, rotational nystagmus Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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