5.过滤 过滤是除去溶液里混有不溶于溶剂的杂质的方法过滤时应注意�一贴将滤纸折叠好放入漏斗加�量蒸馏水润湿使滤纸紧贴漏斗内壁�二低 Template




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tomski5.过滤 过滤是除去溶液里混有不溶于溶剂的杂质的方法过滤时应注意�一贴将滤纸折叠好放入漏斗加�量蒸馏水润湿使滤纸紧贴漏斗内壁�二低 coloring