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词汇 ornithopter
词源

ornithopter n.

1908, from French ornithoptère (1908), a machine designed to fly by mechanical flapping of wings, from ornitho- + Greek pteron "wing" (from PIE root *pet- "to rush, to fly"). A mode of flight considered promising at least since Leonardo's day.

updated on September 03, 2019

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更新时间:2025/5/1 11:00:34