universal-joint casing

例句：

1. 1.The surgeon used a universal joint casing to replace the damaged bone.
   外科医生使用一个通用关节套管来替换受损的骨头。
2. 2.The robotic surgery system uses a universal joint casing to provide precise movements.
   机器人手术系统使用一个通用关节套管来提供精确的运动。
3. 3. The patient was fitted with a universal joint casing to facilitate mobility.
   患者被安装了一个通用关节套管以便于活动。