Pb and Nickel (Ni) were found in Tung-An drain.Zinc (Zn), Nickel (Ni) and Chromium (Cr) were also detected in Ssu-Hao drain.是什么意思_Pb and Nickel (Ni) were found in Tung-An drain.Zinc (Zn), Nickel (Ni) and Chromium (Cr) were also detected in Ssu-Hao drain.在线翻译_英语_读音_用法_例句