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| 螺旋形精馏塔 | |||
| 螺旋形蒸馏塔; 螺旋筋柱; 螺旋柱; 螺旋形柱; 螺旋形塔; 螺旋式柱; 螺旋筋混凝土柱 | |||
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spiral column : 15 phrases in 4 subjects |
| Architecture | 2 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Technology | 11 |
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