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| 陶制管 | |||
| 陶土管 | |||
| 陶管 | |||
| 陶制管; 陶土管; 釉面陶土管; 釉面瓦管; 上釉瓦管; 玻化管 | |||
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vitrified pipe : 15 phrases in 4 subjects |
| Hydraulics | 1 |
| Hydroelectric power stations | 3 |
| Oil / petroleum | 1 |
| Technology | 10 |
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