过滤操作时应注意: 1滤纸的边缘应 漏斗口的边缘,滤纸要紧贴 ,漏斗里的液面要 滤纸的边缘; 2倾倒未过滤液体的烧杯口应 引流玻璃棒 Template




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tomski过滤操作时应注意: 1滤纸的边缘应 漏斗口的边缘,滤纸要紧贴 coloring