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| غلط | |||
| فشل ؛خطأ ؛ استثناء | |||
| اخفاق | |||
| صدع | |||
| خطاء | |||
| خطاء | |||
| fel: 44 phrases in 11 subjects |
| Electric machinery | 1 |
| Electronics | 11 |
| Isolation | 1 |
| Mathematics | 5 |
| Microsoft | 3 |
| Power system protection | 2 |
| Reliability | 3 |
| Statistics | 15 |
| Vacuum tubes | 1 |
| Video recording | 1 |
| Wind Energy | 1 |