每年春天，臭氧遭到破坏，空洞就出现了。Every spring the ozone is chewed up, and the hole appears.亚太经合组织似乎为一大堆空洞的胡言乱语所淹没。APEC seems be drowning in an ocean of jargon.对《星期天的爱情》这首歌的即兴模仿听起来尤其空洞。The ersatz spontaneity of "Sunday Love" sounds esp...
Selective dehydration of hexose, such as D - fructose, is one of main synthetic methods for 5 - hydroxymethylfurfural.果糖等己糖选择性脱水是制备 5- 羟甲基糠醛的主要方法之一....
尿囊素是一种重要的尿素衍生产品.Allantoin is one of the important urea derivative products.车前草含有一种叫做尿囊 素 的化学物质,是消炎抗菌的.Plantain contains a chemical ( called allantoin ) that is anti - inflammatory and antimicrobial.海洋BIO极致精华眼霜主要成分 及 功效: ...