The characters of red pigment form canna flower were studied in this paper.

主要研究了美人蕉花红色素的提取及其稳定性。

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From the Middle East the Chinese acquired a blue pigment—a purified form of cobalt oxide unobtainable at that time in China—that contained only a low level of manganese.

中国人从中东获得了一种蓝色颜料，这是一种当时在中国很难得到的纯净的氧化钴，这种颜料只含有少量的锰。

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Researchers may have found a new form of chlorophyll, the pigment that plants, algae and cyanobacteria use to obtain energy from light through photosynthesis.

叶绿素作为一种色素，植物，藻类和蓝细菌都利用此色素通过光合作用从太阳光中获取能量。 现在研究人员可能已经发现了一种新的叶绿素分子。

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If the tournament pairings were posted in a bracket form, Murray said, they probably would have been painted with pigment on scrolls, placards or walls and wouldn't have survived.

WSJ: NCAA Tournament: Where Was the Bracket Born?