形坡口single V groove    V

真空钎焊    vacuum brazing

蒸气钎焊    vapor phase soldering

可调拘束裂纹试验    varestraint test

碰撞点速度    velocity of the impact point

向下立焊    vertical down welding/downward welding in the vertical position

立焊位置    vertical position of welding

立焊    vertical position welding

向上立焊    vertical up welding/upward welding in the vertical position

振动电弧堆焊    vibratory arc surfacing

粘性熔渣    viscous slag

外观检查    visual examination

玻璃状焊渣    vitreous slag

弧柱压降    voltage drop in arc column

渣池电压    voltage of slag bath

防电击装置    voltage reducing device

形坡口single compound angle groove    VY

不对称双    V形坡口 asymmetric double V groove

双单边    V形坡口 double bevel groove/K groove

带垫板    V形坡口 V groove with backing/ single V groove with backing

单边    V形坡口single bevel groove