Standard classification for dry pigmentary titanium dioxide products 二氧化钛干颜料色素的标准分类
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Pigmentary purpuric dermatosis 色素性紫癜性皮病
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Her 9 years old daughter has bilateral blue irides , bilateral total deafness , dystopia canthorum and bilateral fundus pigmentary changes 第三例为第一例九岁之小女儿，双侧虹彩全蓝，双侧全聋，内眦移位和双侧眼底色素变化。
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Her 11 years old daughter has a blue iris in her right eye , bilateral total deafness , dystopia canthorum and bilateral fundus pigmentary changes 第一例为一三十六岁母亲，右眼虹彩全蓝，左眼虹彩部份蓝色，双侧全聋，内眦移位和双侧眼底色素变化。
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The levels of melanin generally remain the same throughout life , but a few things can change them permanently . the first is a handful of ocular diseases like pigmentary glaucoma 而基质中的黑色素含量在通常情况下是终生保持不变的，除非某些异常情况发生导致它发生永久性的改变。
