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本刊常用法定计量单位的符号及与废除单位的换算关系注：以往用于表示成分含量的ｐｐｍ改用ｍｇ／ｌ或ｍｇ／ｋｇ表示，统计中习惯上称“万”和“亿”分别用“×１０４”和“×１０８”表示．本刊常用法定计量单位的符号及与废除单位的换算关系...
Articles commonly used statutory units of measurement symbols and the abolition of the conversion unit Note: The past used to indicate the ppm content of ingredients to use mg / l or mg / kg that the statistics used to be called “million” and “billion” were used “× 104” and “× 108”. Articles commonly used statutory units of measurement and the abolition of the unit conversion ...