In colour printing, they are: magenta, yellow and cyan.在彩印方面, 它们是: 洋红, 黄及青蓝.For the same reason air information is printed in magenta.出于同样的原因,航空资料采用品红色印刷.Yellow pigment coverage is poor, magenta and cyan pigments for cov...
After some initial problems, acetone was successfully produced in quantity.解决了最初的一些问题之后，终于成功地制造出了大量丙酮。One might expect azomethane to have a Y structure similar to that of acetone ( CH 3 ) 2 CO.可以预期偶氮甲烷分子具有和丙酮 ( CH3 ) 2CO...