a steam-driven locomotive的用法和样例：
- Dynamic mathematical model of the fixed temperature and steam control system of a steam driven SAAC was built by the means of experimentation and computer simulation, which based on PID control method.
- They used a steam roller to iron out the road.
- A steam engine transforms heat into power.
- A steam locomotive is still used in the coal mines here.
- A bathhouse or room for taking such a steam bath.