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aktives Lasermedium; Lasergas n |
laser gas : 20 phrases in 8 subjects |
Automobiles | 1 |
Construction | 1 |
Earth sciences | 5 |
Electronics | 4 |
Medical appliances | 1 |
Natural resourses and wildlife conservation | 1 |
Optics branch of physics | 6 |
Technology | 1 |