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| 检验合格证书 | |||
| 检验合格证 | |||
| 检验证明书 | |||
| 检验证书; 试验证书 | |||
| 检验合格证书 | |||
| 试验证明书 | |||
| 检验证; 文本证书检验证书 | |||
| test certificate: 13 phrases in 6 subjects |
| Aviation | 2 |
| Business | 2 |
| Compressors | 1 |
| Quality control and standards | 1 |
| Shipbuilding | 1 |
| Technology | 6 |
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