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| 挤压硬化内表面的压力容器制造法; 炮筒内膛挤压硬化法; 预应力〔应变，变形〕加工 | |||
| 内表层预应力处理 | |||
| 内膛挤压硬化法; 自增强; 自紧法 | |||
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autofrettage : 4 phrases in 4 subjects |
| Automobiles | 1 |
| Compressors | 1 |
| Metallurgy | 1 |
| Technology | 1 |
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