TCDD在这个家族中毒性最强，被用作参照物，所有其它二恶英均根据实验研究确定相对于TCDD的毒性。
TCDD, the most toxic member of the family, is used as reference compound, and all other dioxins are assigned a toxic potency relative to TCDD, based on experimental studies.
感染中毒症状，相对缓脉，玫瑰疹少见；
Infective intoxication, relative bradycardia and roseola were not common.
当白细胞减少时淋巴细胞出现相对增加而中毒性颗粒积分值改变不明显。
In the course of leucocytopenia, lymphocyte increased relatively whereas the change of integral value of neutrophil's toxic granule was not vary markedly.
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