Microscopic scales covering the wings absorb ultraviolet light and then re-emit it.
覆盖在翅膀上的微结构吸收紫外线，然后又将其重新发射出去。
2
STJ-B aiding agent is a newly developed phosphorus silicate chemical additives, which has favorable effects on slowing down the erosion, preventing the scales and re-ducing the interfacial tension.