revolving steam shovel

例句：

1. 1. The revolving steam shovel is usedto clean the floor.
   旋转式蒸汽铲用于清洁地板。
2. 2. The engineer designed a newrevolving steam shovel forthe construction site.
   工程师为工地设计了一种新型的旋转式蒸汽铲。
3. 3. The revolving steam shovel was arevolutionary tool in the early days of steampower.
   旋转式蒸汽铲是蒸汽动力早期的一种革命性工具。