steam locomotive boiler washout repair

例句：

1. 1.The steam locomotive was the most reliable source of transportation in the area.
   蒸汽机车是该地区最可靠的交通工具。
2. 2. The boiler washout repair was essential to ensure the safety of the train operation.
   锅炉排污维修对于确保火车运行安全至关重要。
3. 3. The engineer had to perform the steam locomotive boiler washout repair quickly to prevent any further accidents.
   工程师必须迅速完成蒸汽机车锅炉排污维修，以防止进一步的事故。