lowpressure torch

例句：

1. 1.The low-pressure torch was used to cut through the thick fog.
   使用低压火炬来穿透浓雾。
2. 2. The engineers used a low-pressure torch to repair the damaged pipeline.
   工程师们使用低压火炬来修复损坏的管道。
3. 3.During the construction of the new bridge, a low-pressure torch was used to prevent damage to the surrounding buildings.
   在建造新桥的过程中，使用低压火炬来防止对周围建筑的损害。