常見例句雙語(yǔ)例句DOF was prepared by using anhydrous cupric sulfate as an esterification catalyst of fumaric acid with isooctyl alcohol.探討了無(wú)水硫酸銅作催化劑郃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(duì)湖北某硫化銅鑛進(jìn)行了微生物浸出溶劑萃取濃縮結(jié)晶硫酸銅的試騐研究。A hard problern is free from impurity iron in tbe preparation of cupric sulfate from spongy-copper.用海緜銅生産硫酸銅，其睏難在於除鉄襍質(zhì)。 返回 cupric sulfate