articulated rod

例句：

1. 1. The engineer designed the new machine with an articulated rod for easy adjustment.
   工程师设计了这台新机器，用一个可动杆来方便调整。
2. 2.The robot's arm is equipped with an articulated rod that can move independently.
   机器人的手臂装备了一个可动杆，可以独立移动。
3. 3. The construction workers used an articulated rod to lift heavy materials from the ground.
   建筑工人使用一个可动杆来从地面举起重物。