Russian ⇄ English

хорошо известный stresses
gen.	noted; better-known; well-known; established (spy); better known; preeminent (bigmaxus); known per se (I. Havkin); familiar; well known (Collins COBUILD Advanced Learner’s English Dictionary: well-known also well known; Oxford Dictionary of English, 3rd Edition © Oxford University Press 2010: well known – adjective known widely or thoroughly ssn)
libr.	well known
Makarov.	trivial
progr.	well-understood (ssn)
хорошо известно
gen.	it is well understood (Konstantin 1966)
amer.	well aware (We are well aware of the dangerous side effects that some herbs can have. Val_Ships)
cliche.	have a good idea (“Obviously we don’t know the horrific details of what happened after she entered the park. But we do have a good idea that this is a first-degree murder charge, which would indicate either it was premeditated or it would have been committed at the same time as another crime,” said Graham Duffy. -- нам хорошо известно, что ... ctvnews.ca ART Vancouver)
math.	it is well known; it is common knowledge

хорошо известно: 68 phrases in 18 subjects

Aviation	1
Chess	2
Cliche / convention	2
Diplomacy	1
Energy industry	1
Formal	1
General	24
Law	2
Makarov	14
Mass media	2
Mathematics	5
Programming	3
Quotes and aphorisms	2
Sakhalin	1
Scientific	4
Sports	1
Technology	1
Telecommunications	1