In technology research focal point should put in weld become type, weld mechanics performance and single surface weld two-sided shape root weld 3 aspects.
在工艺研究中，重点应放在焊缝成型、焊缝力学性能及单面焊双面成形根焊三个方面。
In technology research focal point should put in weld become type, weld mechanics performance and single surface weld two-sided shape root weld 3 aspects.
在工艺研究中，重点应放在焊缝成型、焊缝力学性能及单面焊双面成形根焊三个方面。
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