短語(yǔ)詞組短語(yǔ)ball -and socket joint 杵臼關(guān)節(jié)Ball -Socket constraint 球套約束;球套束縛BALL -SOCKET JOINT 杵臼關(guān)節(jié)Micro Ball -lens Socket 微球透鏡嵌座 返回 ball socket