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| 盖板; 顶板 | |||
| 柱头板; 压顶板; 帽木; 托板 | |||
| cap plate: 21 phrases in 6 subjects |
| Chemistry | 1 |
| Construction | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 8 |
| Oil processing plants | 1 |
| Technology | 8 |
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