短語詞組短語benzene hexachloride poisoning 六六六中毒occupational chronic benzene poisoning 職業(yè)性慢性苯中毒benzene poisoning leukopenia 苯中毒白細胞減少癥Chronic Benzene Poisoning 慢性苯中毒vinyl benzene poisoning 苯乙烯中毒mild benzene poisoning 苯中毒severe benzene poisoning cases 重度苯中毒severe benzene poisoning 重度苯中毒benzene poisoning worker 苯中毒者 返回 benzene poisoning