Recently protein feeds for animals have been developed by growing yeast in a petroleum based stock.

最近已经研制出一种动物食用的蛋白质饲料,它是用石油作为基本原料加上酵母而制成的.

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Recently protein feeds for growing yeast in petroleum has developed animals based stock.

最近已经研制出一种动物食用的蛋白质饮料,它是用石油作为基本原料加上酵母而制成的.

互联网