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| 特殊生产过程 | |||
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| 特种工艺 (对材料进行一系列精确控制的工艺处理,使其产生物理、化学或冶金性能的变化，如果不经过破坏性试验,仅从外观无法衡量其是否符合规范要求的工艺，如化学处理、热处理、喷丸、无损检测等) | |||
| 特殊加工工艺 | |||
| special processes: 9 phrases in 4 subjects |
| Aviation | 4 |
| Business | 1 |
| Metallurgy | 3 |
| Nautical | 1 |
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