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| 绝对重力 | |||
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absolute gravity : 20 phrases in 8 subjects |
| Architecture | 2 |
| Bridge construction | 1 |
| Desert science | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geophysics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Technology | 11 |
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