单层焊

1.
single layer welding
... 脉冲电流 pulse level/pulse current level 单层焊 single layer welding 多层焊 multi-layer welding ...
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2.
one pass welding
机械英汉词典(O-1)-机械资讯-马棚网 ... one pass weld 单层焊缝 one pass welding 单层焊 one phase alloy 单相合金 ...
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