但人们对腌制类食品总抱有一种畏惧的心理，唯恐食物在腌制过程中产生的亚硝酸盐或硝酸盐含量超标。
Whether there are superfluous nitrite or nitrate in the process of production is the question We took a detemination of nitrite or nitrate in the salted fish and pork by spectrophotometry.
但人们对腌制类食品总抱有一种畏惧的心理，唯恐食物在腌制过程中产生的亚硝酸盐或硝酸盐含量超标。
Whether there are superfluous nitrite or nitrate in the process of production is the question We took a detemination of nitrite or nitrate in the salted fish and pork by spectrophotometry.
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