| English | eng-000 |
| refractability | |
| 普通话 | cmn-000 | 可折射性 |
| 普通话 | cmn-000 | 折射性 |
| 普通话 | cmn-000 | 耐火性 |
| English | eng-000 | fire proofness |
| English | eng-000 | fire resistance |
| English | eng-000 | fire-resistant |
| English | eng-000 | fire-resisting property |
| English | eng-000 | flame resistance |
| English | eng-000 | flexibility |
| English | eng-000 | refractiveness |
| English | eng-000 | refractivity |
| English | eng-000 | refractoriness |
| English | eng-000 | refractory behavior |
| English | eng-000 | refractory quality |
| English | eng-000 | refrangibility |
| English | eng-000 | resistivity against fire |
| русский | rus-000 | преломляемость |