短語(yǔ)詞組短語(yǔ)ball -and-socket ankle joint 杵臼踝關(guān)節(jié)the ball and socket joint 杵臼關(guān)節(jié)ball and socket ankle joint 仵臼踝關(guān)節(jié);臼踝關(guān)節(jié)Ceramic ball -and-socket joint 發(fā)明名稱Cast ball -and-socket support joint 鑄鋼球鉸支座節(jié)點(diǎn) 返回 ball and socket joint