three-drum boiler

例句：

1. 1. The three-drum boiler is used for heating water and steam.
   三鼓式锅炉用于加热水和蒸汽。
2. 2. The three-drum boiler has a long history and is widely used in various industries.
   三鼓式锅炉有着悠久的历史，并在各个行业中广泛使用。
3. 3. The three-drum boiler has been improved significantly in recent years, making it more efficient andenergy-saving.
   近年来，三鼓式锅炉已经得到了显著的改进，使其更加高效且节能。