释义 |
atomic number 33 基本英英 英Noun:a very poisonous metallic element that has three allotropic forms;arsenic and arsenic compounds are used as herbicides and insecticides and various alloys;found in arsenopyrite and orpiment and realgar
Noun: a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar |