The inventor Henry Bessemer discovered that directing a blastofair at melted iron in a furnace would burn out the impurities that made the iron brittle.
发明家亨利·贝塞默发现,在熔炉里对铁水直接吹一吹气,就会烧掉使铁变脆的杂质。
2
She opened the window and I was hit by an icy blastofair.
她打开窗户,一阵刺骨的寒风向我袭来。
3
If, for instance, you have a ball held up in the air by a blastofair, it is floating on air.