| English | eng-000 |
| effective aperture | |
| 普通话 | cmn-000 | 实际孔径 |
| 普通话 | cmn-000 | 有效口径 |
| 普通话 | cmn-000 | 有效孔径 |
| English | eng-000 | effective opening |
| English | eng-000 | effective pore radius |
| English | eng-000 | real aperture |
| English | eng-000 | true aperture |
| English | eng-000 | usable aperture |
| English | eng-000 | useful aperture |
| русский | rus-000 | эффективная апертура |
| русский | rus-000 | эффективный раскрыв |