control operating rod

例句：

1. 1. The engineer used a controloperating rod to adjust the machine'sspeed.
   工程师使用控制操作杆来调整机器的速度。
2. 2. The robot had a control operating rodthat could be used to move its arms.
   这个机器人有一个可以用于移动其手臂的控制操作杆。
3. 3. The scientist controlled the operating rodto ensure the experiment was successful.
   科学家通过控制操作杆来确保实验的成功。