The microstructure of the sample glaze layer under polarizing microscope and reflecting microscope has showed acicular hausmannite crystals on the glaze layer sur...
通过偏微镜和微镜观察试样层微结构,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.
有个名叫科梅耶·波夫荷兰人在一本名叫《关于美洲人哲学研究》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,乳房都流着奶汁”。