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| X 射线无损检测 【探伤】; X 射线检验; X射线探伤 | |||
| X 射线分析法 | |||
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| X 射线光检验探伤 | |||
| X 射线无损检测 【探伤】 | |||
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X-ray testing : 8 phrases in 3 subjects |
| Metallurgy | 5 |
| Rail transport | 2 |
| United Nations | 1 |
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