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| reference standard | |||
| reference specimen | |||
| reference sample | |||
| check sample; standard sample | |||
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campione di riferimento : 11 phrases in 6 subjects |
| Agriculture | 3 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 1 |
| Technology | 2 |
| Telephony | 3 |
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