炸弹的副产品之一的放射性同位素锶-90扩散到空中，降落到地面，被奶牛摄取，然后通过牛奶供应传递出去。

The radioactive isotope Strontium-90, one of the by-products of the bombs, spread into the atmosphere, fell onto the land, was ingested by dairy cows and passed into the milk supply.

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奶制品(牛奶及其副产品)。

Dairy (milk and subsequent products).

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牛肉和鸡肉以及与之相关的副产品，比如牛奶和鸡蛋就容易标签。

Beef and chicken and their associated by-products such as milk and eggs are relatively easy to label.

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