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حفاظ ؛رعاية | |||
تثبيت ؛ربط |
mantenimento : 20 phrases in 11 subjects |
Accumulators | 1 |
Animal husbandry | 5 |
Automatic control | 1 |
Electric traction | 1 |
Environment | 1 |
Lighting other than cinema | 1 |
Microsoft | 1 |
Semiconductors | 1 |
Thermal Energy | 3 |
Vacuum tubes | 3 |
Welding | 2 |