Perhaps I need to pull apart another SCR and try the arc welding approach. 也许我需要把除了另一可控硅和审判电弧焊接的办法。
Electric arc welding should not be carried out on equipment suspended from a crane because of the risk of damage to lifting wires from uncontrolled stray currents. 不应在悬挂于起重机下的设备上进行电弧焊接，否则有未经控制的杂散电流损坏吊索的危险。
