动物身体硬而尖锐的部分或附属肢体；如豪猪的刚毛或鱼鳍的骨脉。

A sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin.

youdao

那些泌乳的附属组织丢失和牙槽骨丢失更严重。

Those groups which were lactating saw een greater attachment loss and bone loss.

youdao

那些泌乳的附属组织丢失和牙槽骨丢失更严重。

Those groups which were lactating saw een greater attachment loss and bone loss.

youdao