单词:MF
音标:[em'ef] ;
中频
[化] 三聚氰胺-甲醛树脂; 三聚氰酰胺-甲醛树脂
[化] 三聚氰胺-甲醛树脂; 三聚氰酰胺-甲醛树脂
n 300 to 3000 kilohertz
单词:MF 相关文章
By Amy Katz Washington, DC 28 April 2006 watch Caffeine report Two recently released medical studies show that caffeine is not harmful to the heart. The two long-term studies of coffee drinking habits
发表于:2018-12-08 / 阅读(131) / 评论(0)
2006年VOA标准英语(四月)