compound steam hammer

例句：

1. 1.The compound steam hammer is used for heavy-duty construction work.
   复合蒸汽锤用于重型建筑工作。
2. 2. The engineers developed a new design for the compound steam hammer to improve efficiency.
   工程师们开发了一种新的设计，以提高复合蒸汽锤的效率。
3. 3. The compound steam hammer was used to break through concrete and asphalt in the construction site.
   复合蒸汽锤被用来在施工现场打破混凝土和沥青。