例句與造句

1. 2 . calf thymus dna oxidative damage has been studied with pqc method firstly . the oxidative ability of different hioa systems , including the systems containing cu2 + , zn2 + and no - transition metal elements , was compared
   比較了含zn ~ ( 2 + )和含cu ~ ( 2 + )以及不含有任何離子的過氧化氫體系的不同的氧化能力，其結(jié)果與電泳法得到的結(jié)果一致。
2. It's difficult to find transition metal element in a sentence. 用transition metal element造句挺難的