短語詞組短語harmful poisonous substance 有害毒物harmful l substance 有害物質(zhì)harmful organic substance 有害有機物harmful chemical substance 有害化學(xué)物質(zhì)chemical harmful substance monitoring [環(huán)境]化學(xué)有害物監(jiān)測Poisonous and harmful substance 有毒和有害物質(zhì);有毒有害物質(zhì)potentially harmful substance 可能有害物質(zhì);潛在有害物質(zhì)Harmful Substance Detection 有害物質(zhì)檢測toxic and harmful substance 有毒;有害物質(zhì);有毒有害物質(zhì) 返回 harmful substance