根据散斑照相和电弧等离子体物理学原理，研究了诊断氩气焊弧温度场的新方法。
A new method for the diagnostics of the welding arc temperature fields is studied on the basis of Plasma physics, laser speckle photography.
介绍了氩气保护自动堵孔焊技术及其所用设备、换气焊接系统、焊接电源等。
The technology and equipment of automatic stop up hole welding with argon gas protection, scavenging welding technique and welding power supply are introduced.
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