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| 对照样本 | |||
| 对照样品 | |||
| 控制试样 | |||
| 校核试样; 对照试样; 对比样; 对比试片 | |||
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control sample : 16 phrases in 9 subjects |
| Aviation | 3 |
| Commerce | 1 |
| Doping | 2 |
| Earth sciences | 1 |
| Electronics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 3 |
| Space | 1 |
| Technology | 3 |
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