| 1 | The optic theory originated with Einstein. | |
| 2 | Both of these transitions contribute to optical gain. | |
| 3 | He began experimenting to set optical images in 1793. | |
| 4 | But the scene is actually an optical illusion. | |
| 5 | But they can produce useable optical and infrared data. |
Copyright © Purple Culture Co., Ltd. 2001 - 2026. All right reserved.
