trade journal 在维基百科上的解释是：A trade magazine, also called a trade journal or professional magazine (and colloquially or disparagingly a trade rag), is a magazine whose target audience is people who work in a particular trade or Its main goals are to keep members of the industry abreast of new developments (in which role it functions similarly to how academic journals,scientific journals, medical journals, and Engineering journals serve their audiences) and to serve targeted advertisingto them, which earns a profit for the publication and sales for the advertisers while also providing sales engineering–type advice to the readers, helping them with industrial purchasing and investment The collective term for this area of publishing is the trade press[1] 也即行业杂志或者行业期刊。它的受众是在特定行业工作的专业人士。主要目的是让这些人能够及时了解行业发展动向，同时也刊登针对该行业的广告，以此赚钱。也会提供一些行业投资建议给读者。professional journal就是学术期刊了。它和trade journal在一些功能上是类似的，但是学术专业期刊一般不刊登广告。举例来说这两者的区别大概就相当于汽车之友和汽车工程学报之间的区别吧。（我不看汽车杂志……就是举个例子，如果不对欢迎指正。
Phyllis。
