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| спонтанное испускание | |||
| спонтанная эмиссия | |||
| спонтанное излучение; самопроизвольная эмиссия | |||
| самопроизвольное излучение | |||
| émission spontanée: 3 phrases in 2 subjects |
| Radio | 2 |
| Technology | 1 |
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