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| полые стеклянные шарики | |||
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| стеклянный наполнитель в виде шариков (Andrey Truhachev) | |||
| пузырь в стекле | |||
| glass bubbles: 9 phrases in 7 subjects |
| Mechanic engineering | 1 |
| Military | 1 |
| Oil / petroleum | 3 |
| Oil and gas | 1 |
| Rail transport | 1 |
| Silicate industry | 1 |
| Technology | 1 |