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71. | meat trolley magazine |
| 吊轨的转辙器|岔道 |
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72. | electric trolley hoist |
| 电动移动绞车 |
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73. | trolley bus body |
| 无轨电车车身 |
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74. | trolley wire operation |
| 架线式电机车运输 |
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75. | trolley chamber furnace |
| 台车式箱式炉 |
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76. | articulated trolley bus |
| 铰接式无轨电车 |
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77. | trolley recirculation system |
| 行李手推车循环系统 |
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78. | chain trolley conveyor |
| 吊挂式链输送机 |
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79. | trolley wheel collector |
| 滑接轮式集电器 |
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80. | calf dressing trolley |
| 牛犊屠宰加工小推车 |
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