be locatd in/on/at 有区别吗

e located in ：通常是用於比较大的,而又没有详细资料。如“He is located in Shanghai”。“范围”不一定是面积上的大小,也可以是指一座大楼,而但有不知那一层。如“He is located in that building,but I do not know which floor”。be located on ：一般不会用於人身上。如“The factory is located on the edge of the city”。有“situated”的意思。be located at ：通常是用於有精确的地址的情况。如“He is located at 3rd Floor,No。435,Yan An Xi Road,Jin An District,Shanghai”。located to ：一般是用於形容“某人”或“某工厂”或“某公司”从某地“迁移”到另外一个地方。如“That factory is going to be located to HangZhou”。在这一用法时,正确的英语是用“re-located to”,纵使将会搬去的地方并不是“搬回去”。