 |
| |||
| optical flat; glass flat; piano-disk; plane glass plate; flat piece of glass; flat lens | |||
| optic flat; optical flat; plane-parallel glass | |||
|
Planglas : 3 短语, 1 学科 |
| 光学（物理学分支） | 3 |
|
| |||
| optical flat; glass flat; piano-disk; plane glass plate; flat piece of glass; flat lens | |||
| optic flat; optical flat; plane-parallel glass | |||
|
Planglas : 3 短语, 1 学科 |
| 光学（物理学分支） | 3 |