Zngyelse?
The lede says that the base is also known as Zngyelse.  Who calls it this, and why?  It certainly looks like a confused misreading of the Russian name Энгельс, taking the Э for З and adding an odd letter e at the end.  The ye in the middle would also be an unusual transliteration, although understandable.  Is there a source behind this alternate name?  A Google search shows a lot of web sites that similarly claim this name is "also used", but just as likely they're getting it from Wikipedia rather than the reverse.  There's no hint of any such name in the Russian-language Wikipedia article, unless as I mentioned you misread the Russian name.