| 释义 |
〔afterdamp〕An asphyxiating mixture of gases, primarily nitrogen and carbon dioxide, left in a mine after a fire or an explosion.爆后废气：火灾或爆炸后，残留在矿井中的一种令人窒息的混合气体，主要含氮气和二氧化碳〔blowtorch〕A portable burner for mixing gas and oxygen to produce a very hot flame, used for soldering, welding, and glass blowing.喷灯：使混合气体和氧气产生更炽热火焰的便携助燃剂，常用于接合、焊接和玻璃吹制 |