求翻译：2. 1 主剂的工业合成将天然淀粉调pH值后与有机物发生化学反应改性,再使烃类溶剂、酯类分散剂在反应釜中充分混合,加入经70℃糊化并冷却至室温的改性淀粉和引发剂,搅拌35 min,将配制好的复合有机酸盐溶液缓慢滴入,在80℃反应4 h,用95%乙醇洗涤3～4次,60℃真空干燥5 h得粗产物。以丙醇为溶剂,用索式提取器抽提24 h, 60℃真空干燥5 h得白色粉末状纯产物CJ2 - 9,现场应用时使用浓度为0. 7%。是什么意思？

2.1 the main agent industrial synthesis of the ph value of the natural starch with organic chemical reaction modified, then the hydrocarbon solvents, ester dispersant in the reactor well mixed, add 70 ℃ gelatinization and cooling to room temperature modified starch and the initiator and stirring for

2, 1, of the main industrial synthetic natural starch and pH value after a chemical reaction with organic living modified organisms, and the hydrocarbon solvents, dispersants esters in the reaction mix, and joined the 70° C paste, and cooling to room temperature, modified starch and stir up the jar,