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orifice (orificium, ostium); aperture (orificium, ostium); opening (orificium, ostium) |
apertures : 17 phrases in 7 subjects |
Communications | 2 |
High energy physics | 1 |
Medical appliances | 3 |
Microelectronics | 1 |
Nuclear physics | 3 |
Optics branch of physics | 6 |
Радиоактивное излучение | 1 |