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| 利用空隙; 利用空处 | |||
| 空间使用 | |||
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использование пространства : 19 phrases in 6 subjects |
| Ecology | 1 |
| Electronics | 3 |
| General | 6 |
| Military | 3 |
| Name of organization | 2 |
| Technology | 4 |
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