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| 缺陷检验 | |||
| 深伤检查 | |||
| 缺陷探测试验 | |||
| 缺陷检查; 探伤检查 | |||
| 缺陷检査; 探伤检査 | |||
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| 探伤检查 | |||
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defect detecting test : 1 phrase in 1 subject |
| Shipbuilding | 1 |
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