The ancients said: " love those who love Heng, who constant weight of people. "

古人云: “ 爱人者人恒爱之, 重人者人恒重之. ”

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Filter the mixture with a G 4 glass crucible pre - dried to a constant weight.

用已烘干至恒重的G4玻璃坩埚过滤.

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Results The oven - twice drying was easier than the direct drying to achieve constant weight.

结果采用烘箱两次干燥法比直接干燥法容易达到恒重.

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