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酸性外观
1、looks at───v.看；考虑；着眼于
2、dirty looks───轻蔑的脸色
3、looks lovely───看起来很可爱
4、knowing looks───认识容貌
5、ascetics looks───苦行僧看起来
6、looks up───仰望；查阅；尊敬；拜访；改善
7、looks tasty───看起来很好吃
8、looks───n.(Looks)人名；(英)卢克斯；n.相貌
9、looks over───检查，察看；从…上面看；原谅
1、Sodium Diacetate is mainly used in the food and the feed industry preservation. It looks as white crystalline powder; smells acetic acid odor; is easily soluble in water and ethanol.───钠，主要用于食品和饲料工业的防腐保鲜等，白色晶状粉末，具有乙酸味，易溶于水和乙醇。
2、introduces the properties and applications of sorbic acid, reviews its present process technologies and looks forward to its developmental future.───介绍了山梨酸的性质及用途，对目前的几种制备方法进行了评价，并展望了其发展前景。