martin marietta是什么意思
问题描述：
martin marietta是什么意思
答
martin marietta马丁·玛丽埃塔；马瑞塔1.One was at that time called Martin Marietta Aerospace, Fairchild and the other was Fairchild.一个当时叫做Martin,Marietta航空航天,另外一家是....