我最近幸运地在JAP上中了一篇文章，但编辑在邮件中有一段说要收费，我不知道这个是不是必要的收费项目。请大家帮我看下，谢谢。
To support the cost of wide dissemination of research results through publication of journal pages and production of a database of articles, the author's institution is requested to pay a page charge of $60 per page (with a one-page minimum) and an article charge of $20 per article. For any regular, published article that exceeds 10 journal pages, a mandatory $150 page charge will be added for each page in excess of 10 published pages. A link to the Rightslink service for payment of applicable publication charges and ordering reprints will be provided when proofs are ready for review.
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msx1985
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