进行过滤实验验时必须注意“一贴二低三靠 .一贴滤纸要紧贴漏斗壁二低滤纸边缘低于漏斗边缘滤液低于滤纸边缘.三靠烧杯紧靠玻璃棒玻璃 Template




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tomski进行过滤实验验时必须注意“一贴二低三靠 .一贴滤纸要紧贴漏斗壁二低滤纸边缘低于漏斗边缘滤液低于滤纸边缘.三靠烧杯紧靠玻璃棒玻璃 coloring