以下为句子列表：
英文: Ferrous sulphate treatment improves the erosion rate of the AluBrass. The corrosion rates observed are however higher than that obtained with MEXEL 432.
中文: 硫酸亚铁处理改善铝黄铜的浸蚀率，然而其腐蚀率仍高于M.432处理。
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英文: THE WAY OF RETUM TITRATION OF OVER-DICHREMATE-POTASSIUM WITH STANDARD AMMONIUM FERROUS SULPHATE TO CACULATE THE CONTENT OF TANNIC ACID IN RUBBER ACORN
中文: 硫酸亚铁铵返滴重铬酸钾法快速测定橡子中单宁含量
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