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| vacuum heat treatment (【技】在真空或在真空下通人低压的特殊气体中进行的热处理工艺。可以进行真空淬火、真空退火和真空化学热处理。真空热处理可以达到无氧化、无脱碳的光亮热处理效果，热处理变形量小。) | |||
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真空热处理 : 3 phrases in 3 subjects |
| Automobiles | 1 |
| General | 1 |
| Metallurgy | 1 |
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