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| 51. | Represents various materials. Material type can be specified. |
| 表示各种材料。可指定材料类型。 |
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| 52. | Material used for soundproofing. |
| 消音材料用于隔音的材料 |
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| 53. | low expansion material |
| 低膨胀材料;低膨胀系数材料 |
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| 54. | The material used for these ropes. |
| 绳梯材料制作这种绳子的材料 |
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| 55. | cost of material handling |
| 材料管理成本|材料搬运成本 |
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| 56. | Pressure Boundary material - metallurgy of the castings and components. |
| 压力界面材料:铸件和部件材料。 |
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| 57. | According to the function mechanisms, polymeric noise reduction composites were classified as vibration damping, sound absorption and sound insulation materials. |
| 降噪材料按降噪机理可分为阻尼减振材料、声材料和隔声材料。 |
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| 58. | That material surpasses all others in fineness. |
| 那种材料精良超过其他所有材料。 |
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| 59. | This material outwears all others. |
| 这种材料比其它所有材料都耐用。 |
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| 60. | matter to be printed; exclusive of graphical materials. |
| 要打印的材料；图画材料除外。 |
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