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| master reference; primary standard | |||
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主基准 : 22 phrases in 11 subjects |
| Aviation | 2 |
| China | 3 |
| Communications | 1 |
| Electronics | 1 |
| Librarianship | 4 |
| Metallurgy | 1 |
| Piezoelectric crystals | 2 |
| Space | 4 |
| Technology | 2 |
| Telecommunications | 1 |
| United Nations | 1 |
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