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| 11. | single rivet butt joint |
| 单行铆对接 |
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| 12. | open square butt joint |
| 平头开口对接焊 |
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| 13. | circumferential butt joint ring |
| 周边对接圈 |
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| 14. | plain butt joint |
| 无筋平接缝|平边对接 |
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| 15. | double-cover butt joint |
| 双盖板对接 |
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| 16. | double flanged bott joint |
| 双折边对接 |
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| 17. | butt strap joint |
| 对接搭板接合 |
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| 18. | double butt strap joint |
| 双对接搭板接合 |
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| 19. | butt joint with double straps |
| 双夹板对接 |
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| 20. | single-welded butt joint with back |
| 带垫板单面对接焊 |
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