例句與造句

1. The preferred process of flash butt welding involves an automated track-laying machine running a strong electrical current through the touching ends of two unjoined pieces of rail.
2. Very often flash butt welding is controlled by distance rather than time such that the flashing would occur for a pre-determined length, say 5mm, before the upsetting cycle starts.
3. It's difficult to find flash butt weldings in a sentence. 用flash butt weldings造句挺難的