boiler dry pipe

例句：

1. 1.The boiler dry pipe is the main conduit for the steam system.
   锅炉干管是蒸汽系统的主要导管。
2. 2. The engineers were inspecting the boiler dry pipe for any leaks.
   工程师们正在检查锅炉干管是否有泄漏。
3. 3. The new boiler dry pipe has significantly improved the efficiency of the heating system.
   新的锅炉干管显著提高了供暖系统的效率。