bottom boiler connection

例句：

1. 1. Theengineers were working on the bottom boilerconnection when they heard the alarm.
   工程师们在处理底部锅炉连接时听到了警报。
2. 2. The technicians had to fix the bottom boiler connectionbefore they could start the new machine.
   技术人员在开始新机器之前必须修复底部锅炉连接。
3. 3. The engineers were discussing the bestway to connect the bottom boiler in theirlatest project.
   工程师们正在讨论他们最新项目中最佳的方式连接底部锅炉。