 |
| |||
| reflection The return of waves or particles from surfaces on which they are incident | |||
|
frithchaitheamh : 3 фрази в 1 тематиці |
| Землезнавство | 3 |
|
| |||
| reflection The return of waves or particles from surfaces on which they are incident | |||
|
frithchaitheamh : 3 фрази в 1 тематиці |
| Землезнавство | 3 |