如图所示进行的是过滤操作.1在此操作中玻璃棒的作用是引流引流滤纸的边缘要液面这主要是因为高于防止过滤的液体不经过滤纸而直接流入烧杯中 Template




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tomski如图所示进行的是过滤操作.1在此操作中玻璃棒的作用是引流引流滤纸的边缘要液面这主要是因为高于防止过滤的液体不经过滤纸而直接流入烧杯中 coloring