רוסית ⇄ אנגלית בולגרית +

бесспорно установлено, что מתח
כלל.	it is established beyond controversy that; it is established beyond controversy that
	it is well established that (Alexander Matytsin); it is well-settled (Alexander Matytsin)
... бесспорно установлено, что
	it is established beyond controversy that