?平边对接

... 平边对接焊缝 plainbuttweld 平边对接 plain butt joint 卷边对接 edge flare ...

?平头对接接头

... 平焊对接接头 downhand butt joint 平头对接接头 plain butt joint; square butt joint 锁底对接接头 lock butt joint ...

?平接缝

... 平接；端面 butt 平接板 butt strap; flush plating 平接缝 abutment joint; flat seam; plain butt joint ...