ball and socket
短语词组
- ball -and socket joint 杵臼关节
- ball and socket reamer 肘节扩眼器
- ball and socket ioint 动关节
- Bearing ball and socket 球窝轴承
- Newton Ball and Socket 牛顿物理
- ball and socket osteotomy 球窝切骨术
- ball and socket base 球窝轴承座;球窝座
- ball and socket structure 关节构造
- drawbar ball and socket 牵引杆球头和球座 返回 ball and socket