过山药的土壤的平均铁含量。

The soil of the average iron content.

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山药有纤体、降血糖的功用。

Yam have slimming, fall blood sugar function.

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通过在普通面包原料中加入山药的方法，研制出具有保健功能的山药面包。

Adding yam as the raw material to common bread produced a kind of new bread.

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通过在普通面包原料中加入山药的方法，研制出具有保健功能的山药面包。

Adding yam as the raw material to common bread produced a kind of new bread.

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