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kaka2651

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kaka2651: ½ð±Ò+30, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-12-12 12:48:56
hanches: ½ð±Ò+2, ¸ÐлӦÖú£¬BB½±Àø£¬»¶Ó­³£À´±¾°æ²ÎÓë½»Á÷~~~ 2013-12-12 23:04:16
1¡¢ If A absorb moisture caking substances need to crack, and then feeding
2¡¢ aqueous solution may contain SCN-, case presents blood red ferric solution
3¡¢ low lead precipitated solids are too small, and therefore difficult to filter
4¡¢ PH not more than 4, the material A is dissolved in acid
2Â¥2013-12-12 12:36:08
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