guide vane arm

例句：

1. 1. The guide vane arm on the wind turbine is crucial for its operation.
   风力涡轮机上的导叶臂对于其运行至关重要。
2. 2. During the flight, the pilot adjusted the guide vane arm to optimize fuel efficiency.
   飞行过程中，飞行员调整了导叶臂以优化燃油效率。
3. 3.The engineer carefully inspected the guide vane arm before installing it in the machine.
   工程师在安装机器之前仔细检查了导叶臂。