1·The costs of melanin-based plumage and iridescence are clearly different from this.
黑色素翅膀和彩虹色翅膀的代价与上面却完全不同。
2·You can see the iridescence on their faces.
你可以看到他们脸上的彩虹色。
1·In the fourth chapter, we studied the iridescence phenomena of the green and purple feathers on the neck of pigeon.
第四章中，我们研究了鸽子颈部绿色和紫色羽毛的虹彩现象。
1·Based on the theory of modern optics, the origin of the unique iridescence of abalone shell is analyzed.
结合现代光学理论，分析了鲍贝壳具有独特晕彩的原因。