生物柴油是以植物油和动物脂肪等可再生资源为原料，通过化学、物理、生物等技术手段而制成的。
The biodiesel is prepared by chemical, physical and biological technology using renewable resources such as vegetable oils and animal fats as raw materials.
该物质存在于动物制品的饱和脂肪中，甜甜圈等包装制品中的棕榈油、椰子油中也含有该物质。
This is found in saturatedfats of animal products. Palm oil and coconut oil, used in packagedfood like donuts, also contain this acid.
这种不健康的脂肪来自动物性食物，如牛肉、猪肉、小牛肉、牛奶、蛋类、奶油和奶酪等。
You will find this unhealthy fat in foods that come from animals. Beef, pork, veal, milk, eggs, butter, and cheese contain saturated fat.
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