大学英语作文:科学技术 Technology
The ice cream making process has five key stages. In the first stage, sugar, cream and milk are mixed together in a 3,000 gallon vat to make the basic ice cream mix. In stage two, this mix is pasteurised, or heated to 70 degrees centigrade for 20 seconds, to kill any bacteria. After that, flavour such as chocolate, vanilla or strawberry is added and mixed using steel blades. In the fourth stage, the mix is frozen in a tube to -10 degrees centigrade and at the same time it is whipped by blades to prevent ice crystals forming. Finally, the ice cream is packed into boxes and stored in freezers.
冰淇淋的制作过程有五个关键阶段。在第一阶段,糖,奶油和牛奶混合在一起,在一个3000加仑的大桶做出基本的冰淇淋。在第二阶段,这个组合是巴氏杀菌,或加热到70摄氏度,20秒,杀死任何细菌。在那之后,味道像巧克力,香草或草莓加入用钢片。在第四阶段,配合冻结管- 10摄氏度,同时被叶片以防止冰晶的形成。最后,冰淇淋装盒存放在冰柜。