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| 单词 | rotary-wing aircraft |
| 释义 | rotary-wing aircraft in British English (ˈrəʊtərɪˈwɪŋ ˈɛəˌkrɑːft) noun aeronautics an aircraft, esp a helicopter, that is lifted or propelled by rotating airfoils rotary-wing aircraft in American English (ˈroʊtəriˈwɪŋ) an aircraft, as the helicopter, which is partly or wholly sustained in the air by lifting surfaces (rotors) revolving around a vertical axis |
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