短語詞組短語WELDING and Material 焊接與材料welding filler material 焊接填充材料welding -material 焊接材料welding filling material 焊接填充材料explosive welding composite material 爆炸復(fù)合材料Explosive welding multilayered material 多層爆炸焊接welding wire material 焊絲材料nickel -welding material 鎳基焊接材料welding material ration 焊材定額 返回 welding material