minimum steady speed

例句：

1. 1.The aircraft must maintain a minimum steady speed to avoid stalling.
   飞机必须保持最低稳定速度以避免失速。
2. 2. The car's engine needs to operate at a minimum steady speed to prevent overheating.
   汽车的发动机需要以最低稳定速度运行以防止过热。
3. 3.The train must travel at a minimum steady speed to ensure safety and comfort for all passengers.
   火车必须以最低稳定速度行驶以确保所有乘客的安全和舒适。