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| 输入发生器 | |||
| 输入信号发生器 | |||
| 输入信号发生器 | |||
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input generator : 8 phrases in 6 subjects |
| Earth sciences | 1 |
| Electric machinery | 2 |
| Electronics | 2 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 1 |
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