... cleftweld裂口焊 closedweld底边无缝焊;无间隙焊缝 closed-chamberfusionweld闭室熔焊 ...
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... 焊 weld; solder 底边无缝焊 无间隙焊缝 closedweld 底边无焊缝 closed weld ...
基于4个网页-相关网页
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