... 捻缝胶 seam composition 边缝接合 seam connection 两块连接网板的重叠部分 seam lap ...
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... 榫头及贯通榫眼制造机 tenoning and through-mortising machine 榫头连接 seam connection 榫眼 mortice ...
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column connection seam 柱连接焊缝
connection of welding seam 焊缝连接
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The structure of the vacuum cup adopts self-locking connection mode, thereby having no welding seam and overall aesthetic property; moreover, the handle is firmly arranged without sloshing.
这种保温杯的结构采用自锁配连接方式，无焊缝，整体美观，手柄稳定牢固无晃动。
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