steam admission

例句：

1. 1.The steam engine is the heart of the factory's machinery.
   蒸汽机是工厂机械的核心。
2. 2. The steam intake is designed to improve efficiency.
   蒸汽入口的设计旨在提高效率。
3. 3. The steam intake was damaged during the flood.
   洪水期间，蒸汽入口受损。