1：您好！由于现在出版竞争很激烈，要求速度快。很多期刊为了求速度就把校对好的文章放上网。e代表电子在线，您的文章已经被接受了，而且在efirst，您就不用担心了；
2：您可以看到 官网上的文字 eFirst publishing provides access to all final version articles as soon as they are ready for publication and in advance of the whole issue being published online, in print or on Xplore，表示接受校对好了，但是还没有正式发表；
3：在issue的快慢只影响您的文章被SCI收录的早晚，早点到issue那一栏，早点被收录，因为文章发表后还要经过几个月才会被SCI收录，汤姆森公司是几个月收录一次，不是及时更新的。
4：您要是比较着急，想知道具体时间，可以写信问下编辑

subject: 文章ID号码

Dear editor,

This is the author of 文章 ID. I sent the proofread versrion of my paper in August 2016, but now it is still in the section of "efirst". Could you kindly tell me when   will my paper be covered in the section of "issue" (I know it means that my paper will be published online).

Looking forward to hearing from you soon.

Best regards,
XXX，

非常感谢您全面细致的回答，谢谢您！