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| 51. | He folded his arms. |
| 他双臂交叉放在胸前。 |
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| 52. | belt of folded strata |
| 褶绉带 |
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| 53. | two folded boxwood rule |
| 两折黄杨木尺 |
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| 54. | folded doming-up region |
| 隆褶区 |
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| 55. | folded and grooved seam |
| 折叠和槽式接缝 |
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| 56. | four folded boxwood rule |
| 四折黄杨木尺 |
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| 57. | folded plate concrete roof |
| 褶皱混凝土板屋顶 |
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| 58. | asbestos-cloth folded gasket |
| 石棉布折叠形垫片 |
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| 59. | folded slow wave line |
| 曲折线慢波线 |
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| 60. | He folded his clothes. |
| 他折叠衣服。 |
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