短語(yǔ)詞組短語(yǔ)poisonous s substance 有毒物質(zhì)harmful poisonous substance 有害毒物specified poisonous substance 特定毒物low -poisonous substance 低毒類物質(zhì)Hazardous or Poisonous Substance 有害性或毒性物質(zhì)specific poisonous substance 特定毒物poisonous substance removal 消除有毒物質(zhì)Poisonous and harmful substance 有毒和有害物質(zhì);有毒有害物質(zhì)soil poisonous substance 土壤有害物質(zhì) 返回 poisonous substance