方法采用急性经口毒性实验和长期毒性法。
MethodsAcute and chronic toxicological methods were carried out by oral administration.
方法通过石油沥青急性经口毒性、亚慢性吸入毒性及遗传毒性的实验研究，观察在该实验条件下，石油沥青对受试动物的影响。
Methods Acute oral toxicity test, subchronic inhalation toxicity test and mutagenicity test were conducted to observe the effects of petroleum asphalt in experimental animals.
以FZK为受试物，通过小鼠经口急性毒性实验、小鼠骨髓细胞微核实验、小鼠骨髓细胞染色体畸变实验等毒理学实验对FZK的毒性进行了评价。
The toxicity of FZK was evaluated by acute toxicity test, micronucleus test of bone marrow cells in mice, and chromosomal aberration test of bone marrow cells.
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