It consists of photoreceptor cells and retinal pigment epithelial cells (RPE) which nurse the retina by feeding it nutrients and taking away waste products.
它包括视细胞和视网膜色素上皮细胞(RPE)，视网膜色素细胞通过提供营养和代谢废物来滋养视网膜。
2
Citrus peel, Which is the main waste from processing citrus, contains a great deal of natural pigment and essence.
柑桔皮加工过程中的主要废弃物——果皮中含有大量的天然色素及香精。
3
For example: Clariant Ltd and Clariant pigment Ltd, each of them owned the best system of deal with the waste water, safe environment protection the healthy rule.