外观评定 meaning in English

visual estimation

Methods for assessing the appearance of seam pucker on textiles
纺织品接缝皱纹的外观评定方法
Surface dressing - test methods - visual assessment of defects
敷路料.试验方法.缺陷的外观评定
Asset standard test method for visual assessment of exfoliation corrosion susceptibility of 5xxx series aluminum alloys asset test
5xxx系列铝合金的剥落腐蚀敏感性的外观评定的试验方法