人们在寻找和研究比DOP更安全、性能更好的代用品。
People are looking for and studying the secure substitute which is better than DOP.
研究人员用小白鼠做试验，在薯片中使用奥利·斯特拉油(Olestra，一种油脂代用品，不含胆固醇，低卡路里)，发现当与其它高脂肪食品一起食用时，会导致体重增加。
While conducting experiments using the low-calorie food substitute Olestra in potato chips, researchers found the substitute resulted in weight gain when consumed with other high-fat foods in mice.
例如当研究心脏病和它对身体的影响时，或者当研究大脑疾病时，我们没有充分的代用品来代替动物。
When it comes to research into heart disease and its effects on the body, or diseases of the brain for example, we do not have adequate substitutes for the use of animals.
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