blow torch blowing tube

例句：

1. 1.The firefighters used a blow torch to extinguish the blaze.
   消防员使用吹火器扑灭了大火。
2. 2. The engineer tested the new blow torch for its efficiency.
   工程师测试了新型吹火器的工作效率。
3. 3. The construction workers used a blow torch to cut through the concrete.
   建筑工人用吹火器切开了混凝土。