bottom articulated joint

例句：

1. 1. The robot's bottom articulated joint is designed to allow itto move in a variety of directions.
   机器人的底部铰接关节设计成允许它以多种方式移动。
2. 2. Theteam used the bottom articulated joint to create asmooth transition between their two projects.
   团队使用底部铰接关节来创造两个项目之间的平滑过渡。
3. 3. The bottom articulated joint was responsible for allowing the robotto move in all directions.
   底部铰接关节负责使机器人能够向所有方向移动。