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| 61. | pipe insulating |
| 管子绝缘 |
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| 62. | encrustation [pipe] |
| 内壁结垢〔水管〕 |
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| 63. | equalizing pipe |
| 压力平衡管 |
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| 64. | pipe segregation |
| 缩孔偏析 |
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| 65. | antisyphonage pipe |
| 防止虹吸管 |
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| 66. | pipe connection |
| 管子连接 |
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| 67. | defrosting pipe |
| 除霜管 |
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| 68. | pipe insulation |
| 导管绝缘 |
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| 69. | perforated pipe |
| 穿孔管道 |
|
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| 70. | pipe classifier |
| 管式分粒器 |
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