The key development lies in the ability of the sphere, an optical device, not only to remain invisible itself but to slow light.

关键在于光纤球功能的开发，一种光学设备，不仅要保持自身的不可见性，还要能减缓光线。

In this paper a multistable optical device is designed.

本文提出了一种光学多稳态装置。

Electro-optical device, color filter, and electronic apparatus.

电光装置，滤色器，以及电子设备。

This time another optical device, the field lens came to the rescue.

这个时候另一个光学器件，外地镜头来抢救。

From there, loading the ISO image onto the new virtual optical device is easy.

之后，把IS o映像装载到新的虚拟光学设备就很容易了。