What we've created is an acoustophoretic volumetric display.

我们创造的是声泳体积显示器。

Fluttering on a finger to give a tactile experience that's something that no other kind of volumetric display can do.

在手指上飘动以提供触觉体验，这是其他类型的体积显示器无法做到的。

But the big challenge in creating a volumetric display was to get the beads moving fast enough that it appears as a single non moving image.

但是创建立体显示的最大挑战是让珠子移动得足够快，以至于它看起来像一个单一的非移动图像。