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本报北京电(驻京记者程福俊)最近一个时期，南非连续发生我国公民遇袭身亡事件，仅9月18日后的5天内就有4人死亡，2人重伤。鉴于以上情况，我国驻南非使馆教育组和教育部昨天特别紧急提醒赴南非留学人员，要重
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铝银浆的技术分类本质上是表面化学与物理分布的协同结果。在制造环节，非浮型铝浆通过油酸包覆实现铝片的亲水性排列，使其在漆膜干燥后均匀分布于中下层空间，形成均匀的哑光金属质感。漂浮型铝浆则采用硬脂酸进行疏
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