We are reflecting back to our Shields what is in them, and that reflection stimulates the vibration of the same pattern that is already in the Shields.

将它们反射至我们的护场中，然后这反射会促进护场已有的同型振动。

youdao

Part of this light is reflected back, and the pattern of reflection indicates activity in the tissue it has been reflected from in particular, changes in the flow of blood to that tissue.

ECONOMIST: Lie detection