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| 真空电弧熔化法 (process) | |||
| 真空电弧熔炼 | |||
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| 真空电弧炉熔炼 | |||
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vacuum arc melting : 8 phrases in 3 subjects |
| Metallurgy | 5 |
| Space | 1 |
| Technology | 2 |
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