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

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
From Table 2, it can be found that when ferrihydrite was added,x02SEM decreased from42.1 to 28.7, but AVS of the sediment did not decrease obviously (from 3.4 to 2.6). Ferrihydrite had effectively prevented the reduction of volatile sulfur compounds, therefore the results of x02SEM/AVS did not increase rapidly. If not, it would lead to a dramatic increase of the bioavailability and toxicity. Pb2+ and Zn2+ were affected the most after ferrihydritewas added. Their concentrations decreased from 10.7x02mol g−1 and 28.9x02mol g−1 to 6.7x02mol g−1 and 20.4x02mol g−1, respectively. The other metals changed little, such as Ni decreasing merely from 1.1x02mol g−1 to 0.3x02mol g−1, and Cd (0.084x02mol g−1), Cu (1.2x02mol g−1)maintaining at the original level.