短語詞組短語fire trench welding 鍛焊fire cracker welding 焊條預(yù)置式焊法;[機]躺焊;焊條預(yù)置武焊法;躺焊surfacing by fire cracker welding 躺板極堆焊fire -crair conditioningker welding 躺焊fire welding cable 電 返回 fire welding