boiler bottom plate

例句：

1. 1. The boiler bottom plate is where the water enters the furnace.
   锅炉底板是水进入炉膛的地方。
2. 2.The engineer inspected the boiler bottom plate to ensure it was in good condition.
   工程师检查了锅炉底板，确保其状况良好。
3. 3.The technician replaced the damaged boiler bottom plate with a new one.
   技术员用一个新的底板替换了损坏的锅炉底板。