A means or method of defending or protecting. AC gas metal-arc welding process 护卫措施防御或保护的手段或方法交流熔化极气保护焊
Molten salt synthesis of platelet NaNbO_3 crystals AC gas metal-arc welding process 熔盐法合成片状NaNbO3晶体交流熔化极气保护焊
AC gas metal-arc welding process Numerical Analysis of Dynamic Fluid Flow and Heat Transfer in Fully-penetrated GTAW Weld Pool 交流熔化极气保护焊全熔透钨极惰性气体保护电弧焊熔池流动与传热动态过程的数值分析