短語詞組短語weld arc spot weld 電弧點焊縫weld arc ot weld 電弧點焊縫gas arc tungsten weld 鎢極氬弧焊single arc tandem weld 單弧串列焊arc -weld inversion 逆變弧焊arc spot weld [機]電弧點焊;電弧點焊縫plasma arc overlaying weld 等離子弧堆敷arc seam weld [機]電弧縫焊;電弧縫焊縫 返回 arc weld