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1.The preservative activity of the product is very high.
该产品的防腐剂活性非常高。
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2. The preservative activity of the food is crucial for its shelf life.
食品的防腐剂活性对其保质期至关重要。
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3. The preservative activity of the wine was tested to ensure it met the required standards.
葡萄酒的防腐剂活性被测试以确保符合所需标准。