短语词组短語flow feeder mark 波流痕zinc flow ripple mark 鋅流波痕cold flow mark 冷塑痕跡Criteria for Flow Mark 流痕的判定標準weld flow mark 銲接流痕;燒銲流痕;屬類back flow mark 裂痕Coating Flow Mark 塗層流痕surface flow mark 表麪流紋calender flow mark 冷紋 返回 flow mark