And when they're done, we're going to hit "Go," and robots will start 3D printing in stainless steel, and then they're going to keep printing, without human intervention, until the bridge is finished.
Quando avranno finito, premeremo "Via," e i robots stamperanno in 3D  acciaio inossidabile e continueranno a stampare senza  intervento umano fino a che il ponte sarà finito.