The phrase "as largely described" is correct and usable in written English.
It can be used when referring to something that has been explained or detailed to a significant extent in a previous context.
Example: "The process is as largely described in the previous chapter, highlighting the key steps involved."
Alternatives: "as extensively outlined" or "as thoroughly explained".
The episode received generally positive reviews, and was largely described as an effective conclusion to the love triangle subplot.
In what has been largely described as a "Cinderella-like story", Mottola heard the tape in his Limousine ride home, and quickly returned to the event to find the girl with the "elusive voice".
Fowler's partnership with Steve McManaman was largely described as the reason why Liverpool had become the club known for being the most potent attacking force in England at the time, and Fowler was renowned for scoring goals of all varieties, from every angle and distance, with McManaman describing him as the "greatest goalscorer of all time".
Among those reporting sex with adult males, relations were largely described as insertive intercourse (79.5%), while 11.0% reported receptive intercourse only and 10.2% reported both.
The cellular infiltrate was largely described as neutrophilic and histocytic and was severe enough to cause abscess formation in some of the most severely AR mice.
Thirdly. in this preliminary study, emotional and cognitive concerns were largely described as lying unaddressed in mainstream medical approaches despite having, in several cases, repeated contact with health care professionals such as physicians, nurses and, in some cases, counsellors.
MalariaGEN researchers largely described themselves as being strongly in favour of open access policies genomic science, in the expectation that this would improve the utility of data and lead to greater innovation.
Expression and purification of nonacetylated wild-type (WT) aS were conducted largely as described previously.
