电子垃圾也会含有很多有毒金属物。

Electronic wastes also contain many poisonous metals.

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植物是有毒金属进入食物链的一种方式。

Plants offer a way for toxic metals to enter the food chain.

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有毒重金属是主要污染物之一。

The poisonous heavy metal is one of the major pollutants.

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有毒重金属是重要的污染物之一。

The poisonous heavy metal is one of pollutants.

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有毒重金属的含量均低于国家标准。

The contents of toxic heavy metals were lower than national standards.

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有毒重金属的含量均低于国家标准。

The contents of toxic heavy metals were lower than national standards.

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