Passing liquid cellulose (cellulose xanthate) through a narrow slot into another liquid ( solution of sulfuric acid, sodium sulfate and zinc sulfate)

• 把液体纤维素(黄酸纤维素)从一条狭缝喷出,进入另一种液体内(硫酸,硫酸钠和硫酸锌溶液)