in variable polarity plasma arc welding of aluminum, the stability and strained condition of variable polarity plasma arc were affected significantly by pilot arc.
在铝合金变极性穿孔型等离子弧焊接工艺中,维弧电源对变极性电弧的稳定和工件受力状态有显着影响。
the stayed cables are important components of shenzhen vanke center, it's significant to monitor their strained condition during construction and operation.