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71. | an endless conversation |
| 没完没了的谈话 |
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72. | an endless universe |
| 无边无际的宇宙 |
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73. | endless round belt |
| 环形圆皮带 |
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74. | endless rope braker |
| 死绳式制动器 |
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75. | endless tangent screw |
| 微调蜗杆螺钉 |
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76. | endless loop cartridge |
| 环形盒式磁带机 |
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77. | drive endless chain |
| 传动循环链 |
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78. | endless rope haulage |
| 元极绳运输 |
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79. | endless data recorder |
| 循环数据记录器 |
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80. | an endless chain. |
| 环链 |
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