“不纯的”用英语怎么说

“不纯的”的拼音为：...

以为亚细胞组分很纯而实际不纯的情况,一直是植物化学家感到难办的问题.The impurity of supposedly pure subcellular fractions is a constant threat to the plant biochemist.我们在地球上发现的铁矿是不纯的.The iron ore which we find in the earth is not pure.纯的和不纯的情感在外在上的表现可能一模...