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| biprism | |||
| column pair; coupled columns; double column vertical boring machine (立式镗床); double strut; geminated columns; paired columns; pair of columns; twin columns; queen post | |||
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| queen post; queen-post | |||
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| double column | |||
| double column vertical boring machine | |||
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| queen post | |||
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| coupled columns | |||
| 双柱: 374 phrases in 32 subjects |
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