以家鸡进行安全性试验，无二次中毒现象。
The safety experiment with chicken had not secondary poisoning.
禁止在草原上使用剧毒、高残留以及可能导致二次中毒的农药。
Hypertoxic and highly residual pesticides and pesticides that may lead to secondary hazard toxicity are prohibited from use on grasslands.
禁止在草原上使用剧毒、高残留以及可能导致二次中毒的农药。
Hypertoxic and highly residual pesticides and pesticides that may lead to secondary hazard toxicity are prohibited from use on grasslands.
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