The microstructure of the sample glaze layer under polarizing microscope and reflecting microscope has showed acicular hausmannite crystals on the glaze layer sur...
通过偏
显微镜

显微镜观察试样
层
显微结构,发现虹彩


过程中
层表面析出了针状
黑锰矿晶体。
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A Dutchman named Comeille de Pauw announced in a popular work called Recherches Philosophiques sur les Americains that native American males were not only reproductively unimposing, but so lacking in virility that they had milk in their breasts.
有个
叫科梅耶·波夫
荷兰人在一本
叫《关于美洲人

研究》
通俗作品中宣称,美洲
土著男人不但在繁殖方面给人印象不深,而且“如此缺乏生殖能力,他们
乳房都流着奶汁”。