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| 51. | reciprocating stroke |
| 往复行程 |
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| 52. | effective travel |
| 有效行程 |
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| 53. | extreme limit of travel |
| 行程极限 |
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| 54. | It's about 4,500 km long! |
| 行程4500公里。 |
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| -- 来源 -- 高中英语(高一下学期适用) 3 - Unit 9 Wheels Lesson 3 Clean Machines |
好评(10) |
差评() |
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| 55. | differential movement |
| 差动行程 |
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| 56. | relative travel |
| 相对行程 |
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| 57. | travel of spindle |
| 主轴行程 |
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| 58. | backward travel |
| 后退行程 |
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| 59. | remainder stroke |
| 剩余行程 |
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| 60. | About a ten minutes'walk. |
| 大概10分钟行程。 |
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