染色斑点 meaning in English
dye speck
dyeing speck
Examples
- Anodizing of aluminium and aluminium alloys - assessment of quality of sealed anodic oxide coatings part 4 : dye spot test with prior acid treatment
铝及铝合金阳极氧化氧化膜封孔质量的评定方法第4部分：酸处理后的染色斑点法
dye speck
dyeing speck