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| self-contained power supply | |||
| self-powered system | |||
| self-contained source of supply | |||
| 自 备电源: 20 phrases in 7 subjects |
| Aviation | 3 |
| Electronics | 4 |
| Hydroelectric power stations | 3 |
| Oil / petroleum | 1 |
| Shipbuilding | 2 |
| Space | 1 |
| Technology | 6 |
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