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| chemical linkage; chemically-bond | |||
| chemical bond | |||
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化学结合 : 28 phrases in 9 subjects |
| Agriculture | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Engineering geology | 1 |
| General | 1 |
| Metallurgy | 5 |
| Oil / petroleum | 2 |
| Technology | 15 |
| Water resources | 1 |
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