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| 三通接头; 三通管 | |||
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branch tee : 19 phrases in 9 subjects |
| Drilling | 1 |
| General | 1 |
| Hydroelectric power stations | 3 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Rail transport | 2 |
| Refrigeration | 1 |
| Technology | 7 |
| Wind Energy | 1 |
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