Welding is the key factor which restrict the construction speed and quality.
长输管道建设中，焊接是制约施工速度和施工质量的关键环节。
The welding temperature was directly proportional to rotation speed.
提高搅拌头的旋转速度可以成比例地提高焊接温度；
For high speed welding for thin plates.
用于高速焊接、尤其适宜于薄板焊接。
For high speed welding for thin plates.
用于高速焊接、尤其适宜于薄板焊接。
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