organic coloring matter

• 有机色素

organic coloring matter的用法和样例：

例句

1. Pigments shall be weatherproof and consist of inorganic or light-resistant organic colouring substances.
   颜料应抗风化，应由无机的或者抗光氧化的有机色素组成。
2. Carotenoids are organic pigments that are naturally occurring in plants and some other photosynthetic organisms like algae, some types of fungus and some bacteria.
   类胡萝卜素是一些有机色素，它们天然地存在于植物和其他可以进行光合作用的生物体比如海藻和一些真菌与细菌里。