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| bucket chain elevator | |||
| continuous bucket elevator | |||
| chain bucket; chain bucket elevator; paternoster elevator | |||
| Jacob's ladder | |||
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链 斗 提升机 : 25 phrases in 4 subjects |
| Chemistry | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Technology | 21 |
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