Group B, severe damage was observed on the cornel epithelia at concentration of 5.0% and 2.5%, but the cornea is clear at concentration of 1.0% and 0.5%.是什么意思_Group B, severe damage was observed on the cornel epithelia at concentration of 5.0% and 2.5%, but the cornea is clear at concentration of 1.0% and 0.5%.在线翻译_英语_读音_用法_例句