I am not a fan of military aircraft so have no idea what this is.  I assume that it has a Chinese designation despite its Soviet heritage.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/26474292735/">Chinese Air Force fighter jet, Beijing Aviation Museum</a>