实践证明，采用双重密封结构，取消传统MOA中的隔弧筒和引拔棒，提高了MOA的密封可靠性。
Practice shows that the sealing reliability of MOA have been enhanced by using the double sealing and excluding traditional arc-isolating cylinder and FRP rode.
提出了一种新型的双重单端正激式弧焊逆变电源，采用IGBT为开关器件，引入了电流型脉宽调制控制器。
A new double single-ended forward arc welding power inverter with IGBT as power device and current PWM controller is introduced in this paper.
用于野外焊接施工的弧焊发电机，有时需要有下降特性和平特性的双重输出外特性。
Arc welding generator used for field welding, sometimes is required to have both dropping and constant voltage external characteristics.
结构分析考虑双重非线性情况，采用弧长法跟踪整个荷载—位移全过程的平衡路径，确定极限承载力。
Double nonlinear factor was considered in the structure analysis. To calculate the ultimate bearing capacity, the equilibrium path of the load and displacement using arc-length method was traced.
结构分析考虑双重非线性情况，采用弧长法跟踪整个荷载—位移全过程的平衡路径，确定极限承载力。
Double nonlinear factor was considered in the structure analysis. To calculate the ultimate bearing capacity, the equilibrium path of the load and displacement using arc-length method was traced.
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