A particular device of location and compaction for welding by one side in shape by both sides was designed according to the enterprises requirement in steel plates butt joint.
针对某企业需求的平板对接，为解决大型钢板焊接不易翻转的难题，设计了一种单面焊双面成形定位压紧小车。
The parting surfaces of a mould are those portion of both mould plates, adjacent to the impressions, which butt together to form a seal and prevent the loss of plastic material from the impression.
模具的分型面是两模板接近型腔的那些部分，它们对接一起形成油封并且避免型腔里塑性材料的损失。
The round plates with arc shaped butt-welded joints were used for stopping sone tube holes which were moved away to another proper positions in the pipes.
采取有弧度的圆形镶块，以对接接头的形式堵补部分管孔，将其移位到管道上的合适位置。
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