At Desktop Metal, they alternate layers of metal powder with a glue-like binder.

在Desktop Metal公司，它们用胶状粘合剂替代了金属粉末层。

Traditionally, 3-D printing works by fusing metal powder together layer by layer with a laser.

传统上，3D打印的工作原理是将金属粉末融化，并在激光的作用下，一层一层粘合起来。

It melts the loose metal powder into a compact structure.

它将松散的金属粉末熔化成致密的结构。

The metal powder is in a container at the beginning of the parabolic flight.

金属粉末在抛物线飞行开始时位于容器中。

The metal powder has really been transformed into two small spanners.

金属粉末真的变成了两把小扳手。

The atmosphere would crush the pipe, turning the incoming pod into metal powder, and its passengers into human confetti.

大气层会压碎管道，将进入的吊舱变成金属粉末，将乘客变成人类五彩纸屑。