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| 81. | upgrading of boiler weld |
| 锅炉焊缝加强 |
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| 82. | double-cover butt joint |
| 双盖板对接 |
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| 83. | flash butt weld |
| 电弧对接焊 |
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| 84. | welding metal cracking |
| 焊缝金属裂纹 |
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| 85. | flash butt welding machine |
| 闪光对接焊机 |
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| 86. | butting optical fiber |
| 对接式光纤 |
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| 87. | single welded butt |
| 单面焊对接 |
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| 88. | weld ductility test |
| 焊缝延伸试验 |
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| 89. | butt welded joint |
| 对接焊节点 |
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| 90. | bead weld cracking test |
| 焊缝开裂试验 |
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