boiler lagging plate

例句：

1. 1. The boiler needs to be checked regularly to ensure it is functioning properly.
   锅炉需要定期检查以确保其正常工作。
2. 2.The engineer inspected the boiler lagging plate and found no signs of wear or damage.
   工程师检查了锅炉的水位计板，没有发现任何磨损或损坏的迹象。
3. 3.During maintenance, the technician replaced the boiler lagging plate with a new one.
   在维护期间，技术人员用一个新的锅炉水位计板替换了旧的。