英语翻译成中文，不要工具翻译，专业名词及缩写可以不用翻译我自己改，求大神！

Zinc

From Fig. 2(a), it can be observed that Zn2+ in residual fraction increased by 9% after 5 months when apatite was added. The effect of ferrihydrite was shown in Fig. 2(b), the most obvious change was caused by the residual fraction. Zn2+ in the residual fraction increased by 16% after 5 months. When composite additive was added, Zn2+ in the residual fraction increased by 10% after 5 months and Zn2+ in the oxidizable phase dropped slightly in whole process and no obvious change was found from Fig. 2(c).Apparently, it can be found that no synergic effect of apatite and ferrihydrite was found in immobilizing Zn2+ comparing to that of Pb2+. In the whole process, the reducible and oxidizable fractions were quite stable and no great changes were found in these two phases.