triple expansion steam engine

例句：

1. 1. The triple expansion steam engine is a crucial component in the power generation process.
   三缸式蒸汽机是发电过程中的关键部件。
2. 2. This model triple expansion steam engine has been widely used in industrial applications.
   这款三缸式蒸汽机在工业应用中被广泛使用。
3. 3. The triple expansion steam engine is more efficient than traditional engines due to its unique design.
   由于其独特的设计，三缸式蒸汽机比传统发动机更高效。