A hematite rough concent rate with a grade 56.00%and recovery83.36%was obtained by adding 30%bla ck liquor,which was treated with H 2 SO 4 ,into the pulp.是什么意思_A hematite rough concent rate with a grade 56.00%and recovery83.36%was obtained by adding 30%bla ck liquor,which was treated with H 2 SO 4 ,into the pulp.在线翻译_英语_读音_用法_例句