Some potential carcinogens and mutagens have also been identified in irradiated foods.

在辐照的食品中已经鉴定出有一些潜在的致癌及致变物质。

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Concern has also been expressed about the possible loss of nutritional value of some irradiated foods.

另一种顾虑是怀疑一些经辐照处理的食品的营养价值可能会降低。

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Therefore there may be no obvious sign that some irradiated foods have subsequently become unsafe to eat.

因此，可能还没有明显的证据表明，一些辐照过的食物随后变得不能安全食用。

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