... 南瓜苗Pumpkin Stem 瓜苗Melon Stem 藤蔓Vines ...
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The nitrite contents and its change speed in leaf vegetables was obviously higher than that in melon or fruit vegetables and root or stem vegetables.
叶菜类蔬菜中的亚硝酸盐含量及其变化速率均明显高于瓜果类和根茎类蔬菜。
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