翅膀。
A wing.
齿轮系中最小的齿轮。
The smallest gear in a gear train.
齿数较少的小齿轮,设计用于与较大的轮或齿条啮合
a gear with a small number of teeth designed to mesh with a larger wheel or rack
鸟翼上离身体最远的关节。
The joint of a bird's wing farthest from the body.
鸟类的大型翅膀或尾羽
any of the larger wing or tail feathers of a bird
鸟翼最外侧的初级飞羽。
Any of the outermost primary feathers on a bird's wing.
鸟的翅膀
wing of a bird
Lithophane属的蛾。
A moth of the genus Lithophane.
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