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| 校准用基准标准; 检定用基准标准 | |||
| 校准用标准 | |||
| calibration standard: 6 phrases in 6 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Otorhinolaryngology | 1 |
| Space | 1 |
| Technology | 1 |
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