wedge-shaped bone的意思|示意

美 / / 英 / /

楔形骨

楔骨 ... wedge-shaped body ==> 楔状岩体 wedge-shaped bone ==> 楔骨 wedge-shaped brush ==> 楔形电刷 ...

Anchiornis's wrist bone was so wedge-shaped that it could fold its arms to its sides, keeping its arm feathers off the ground as it walked.

近鸟龙的腕骨呈深楔形，因此它可以将前肢折叠到身体两侧，行走时前肢上的羽毛可以悬空，不会拖在地面上。