QW-410.65 ) V9 a" U) r9 s$ oThe addition or deletion of grinding beyond that required to clean the surface or remove minor surface flaws(i.e.,use or nonuse of half-bead technique or similar technique). ( N3 O0 v7 Q0 l! D6 X请问这里的half-bead technique 指的是什么技术?是说多道焊接时的每道之间压一半吗?