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| 51. | assembly trolley rails |
| 装配场运输轨 |
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| 52. | grooved trolley wire |
| 沟纹滑轮线 |
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| 53. | circular trolley wire |
| 圆形接触电线 |
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| 54. | two-wheel trolley |
| 双轮小车 |
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| 55. | side-running trolley |
| 旁接触滑触线 |
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| 56. | fire extinguisher trolley |
| 灭火器推车 |
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| 57. | light foldable trolley |
| 轻便折叠车 |
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| 58. | automatic trolley reverser |
| 杆形集电路的自动反向器 |
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| 59. | hydraulic trolley jack |
| 手推车式液压千斤顶 |
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| 60. | trolley-bus motor |
| 无轨电车电动机 |
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