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| capillary column; open tubular column | |||
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开 管 柱 : 24 phrases in 9 subjects |
| Automobiles | 1 |
| Chemistry | 2 |
| Drilling | 1 |
| Earth sciences | 2 |
| Geology | 3 |
| Oil / petroleum | 4 |
| Space | 1 |
| Technology | 8 |
| Water resources | 2 |
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