| 1. | Trouble rules of reliability analysis of caterpillar tractor
履带拖拉机可靠性分析中故障规律的研究
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| 2. | A caterpillar tractor is tugging along the truck that has bogged down
履带式拖拉机在拖那辆陷入泥沼的卡车。
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| 3. | Examine general rule of repair quality for tractor part 2 : caterpillar tractor
拖拉机修理质量检验通则第2部分:覆带拖拉机
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| 4. | Statistical analysis study on reliability and maintainability of caterpillar tractor
东方红802履带拖拉机从动鼓轮毂缩孔问题攻关研究
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| 5. | In the following months , he demanded a design for an armed caterpillar tractor , capable of crossing trenches and crashing obstacles
在随后的月份里，他要求设计一个装备武器的能翻过壕沟和碾碎障碍物的履带车。
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