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| 强度测验机 | |||
| 强度试验机 | |||
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| 强度试验机 | |||
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strength testing machine : 8 phrases in 5 subjects |
| Business | 1 |
| Chemistry | 1 |
| Metallurgy | 2 |
| Shipbuilding | 1 |
| Technology | 3 |
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