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| 标准周期 | |||
| 发动机理想工作循环 | |||
| 标准循环 | |||
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standard cycle : 10 phrases in 5 subjects |
| Automobiles | 2 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Oil / petroleum | 1 |
| Technology | 5 |
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