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| 二挡速率; 头〔二，三，四〕挡速率; 第二档车速 | |||
| 第二速度; 二挡速度 | |||
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second speed : 8 phrases in 6 subjects |
| Aviation | 1 |
| Business | 1 |
| Compressors | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Technology | 3 |
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