HTTP/1.1 200 OK Date: Mon, 14 Oct 2019 09:11:23 GMT Server: Apache X-Frame-Options: SAMEORIGIN Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Accept-Ranges: bytes Accept-Length: Content-Disposition: attachment; filename=《直流高压发生器通用技术条件》 DL/T 848.1—2004.swf Vary: User-Agent,Accept-Encoding Content-Length: 0 Content-Type: text/html; charset=utf-8