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1. | constant speed drive |
| 等速传动 |
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2. | being the gear producing the lowest drive speed. |
| 处在产生最低驾驶速度的档上。 |
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3. | quad-speed drive |
| 四倍速驱动器 |
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4. | variable speed drive |
| 变速驱动器 |
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5. | adjustable speed drive |
| 可调速驱动装置 |
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6. | vari-speed drive |
| 无级变速传动装置 |
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7. | con-speed drive |
| 定速驱动 |
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8. | multi-speed drive |
| 多级变速传动 |
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9. | two speed drive |
| 双速驱动 |
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10. | drive at rattling speed |
| 以高速驾车 |
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