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| backup system; support system | |||
| supporting system | |||
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支承 系统 : 16 phrases in 7 subjects |
| Automobiles | 1 |
| Aviation | 2 |
| Electric machinery | 2 |
| Electronics | 2 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Technology | 5 |
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