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| 扇形给料器 | |||
| 扇形闸门; 扇形浇口 | |||
| 扇形门 | |||
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fan gate : 4 phrases in 4 subjects |
| Hydroelectric power stations | 1 |
| Plastics | 1 |
| Technology | 1 |
| Wushu | 1 |
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