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| 等效容积 | |||
| 当量体积; 等效体积 | |||
| 等效音量值 | |||
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equivalent volume : 15 phrases in 9 subjects |
| Automobiles | 1 |
| Business | 1 |
| Economy | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 1 |
| Technology | 6 |
| Telecommunications | 1 |
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