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| dropper (表面张力) | |||
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测重计 : 24 phrases in 9 subjects |
| General | 1 |
| Geophysics | 1 |
| Golf | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Mining | 2 |
| Space | 1 |
| Sugar production | 1 |
| Technology | 14 |
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