常見例句雙語例句DOF was prepared by using anhydrous cupric sulfate as an esterification catalyst of fumaric acid with isooctyl alcohol.探討了無水硫酸銅作催化劑合成富馬酸二異辛酯的方法和工藝條件。Experiments on preparation of cupric sulfate from a copper sulfide ore by microbiological leaching solvent extraction crystallization have been carried.對湖北某硫化銅礦進行了微生物浸出溶劑萃取濃縮結(jié)晶硫酸銅的試驗研究。A hard problern is free from impurity iron in tbe preparation of cupric sulfate from spongy-copper.用海綿銅生產(chǎn)硫酸銅，其困難在于除鐵雜質(zhì)。 返回 cupric sulfate