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1 [颜料]?颜料棕 信息 中文名称: 颜料棕 中文同义词: 颜料棕 英文名称: 24 PIGMENT BROWN 24 英文同义词: 24 PIGMENT BROWN 24;13 PIGMENT BROWN 13 CAS号: 分子式: 分子量: 0 EINECS号: 2 ?供应钛铬黄 供应钛铬黄（Pigment Brown） 摘要: 组成的柠檬黄颜料，具有较高着色力, 产品色相从红相到绿相，具有极好的耐化学腐蚀性
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Instead, people with blue eyes have a brown pigment, known as melamin, at the back of their irises but have low concentrations of melanin in the front of their irises. 相反，蓝眼睛的人有一种褐色色素，被称之为黑色素，位于虹膜背部，但在虹膜前部黑色素浓度较低。 - 2
The laser energy removes the brown pigment, or melanin, from the top layer of the iris, and the blue eye colour emerges over the following two to three weeks. 激光能去除眼球虹膜最外层的棕色素或黑色素，而蓝眼珠会在两到三周之后显现。 - 3
The newfound trapdoor spider isn't a true albino, since it still has some pigment-its body is brown, like those of other trapdoor spiders. (See pictures of albino animals.) 这种新发现的螲蟷并非真正的白化变种，因为它仍然含有一些天然色素——它和其它螲蟷一样，身体是棕色的。
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