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| 21. | main rotor shaft |
| 主旋翼轴 |
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| 22. | main spindle front bearing |
| 主轴前轴承 |
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| 23. | "Rotary motion of the transmission main shaft carries through the propeller shaft to the differential |
| 变速器主轴的旋转运动通过传动轴传递到差速器上,使后车轮转动。 |
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| 24. | The main shaft was covered with dust and the thin cat was lying asleep on it. |
| 研磨机的主轴上面沾满灰尘，而那只瘦巴巴的猫正躺在上面睡觉。 |
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| -- 来源 -- 新世界名著-最后的一课 - Old Cornille's Secret How the Secret Was Discovered |
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| 25. | nodes in main axis |
| 主轴上的节数 |
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| 26. | main-spindle oil for precision machine tool |
| 精密机床主轴油 |
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| 27. | The main shaft is anticorrosive. |
| 下轴承端盖密封采用双重密封，可确保密封效果，主轴采用防腐新技术，能保护主轴免受腐蚀。 |
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| 28. | main shaft cable |
| 钻井电缆 |
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| 29. | "The overdrive is a mechanism interposed between the transmission and propeller shaft to permit the propeller |
| 超速档是装在变速箱和传动轴之间的一套机械装置,使传动轴比变速器主轴转的更快。 |
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| 30. | They permit the friction disk to slide Back and forth along the shaft But force the disk and the shaft |
| 可以使摩擦盘沿着主轴向后或向前滑动,又可使圆盘和主轴同时转动。 |
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