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фотоны с относительно более низкими уровнями энергии (The beam contains relatively more high-energy (hard) photons near the central axis and relatively more low-energy (soft) photons far from the central axis vlad-and-slav) | |||
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мягкий фотон |
soft photons: 3 phrases in 1 subject |
Makarov | 3 |