The phrase "in its practice" is correct and usable in written English.
You can use it to refer to an action or process being implemented in real life. For example: "This particular approach has been successful in its practice over the years."
The field of neutral functional equations (in short NFDEs) is making significant breakthroughs in its practice; it is no longer only a specialist's field.
It is in its practice that the LCP has failed.
Erdogan's demokrasi may be "illiberal" in its practice, but it represents a forceful expression of the people's will – a blunt majoritarian riposte to an imagined democratic gold standard that in reality no longer exists.
Thirty-five yeafterfter Ali's sad final fight (a loss to Trevor Berbick), boxing endures, more marginal than it once was but essentially unchanged in its practice: a method, cruel but reliable, for creating moments of exquisite drama.
She would work with a manager helping to embed a culture of equality and diversity in its practice and employment policies, making sure that it was up to date with equality and diversity law.
Lesson number one: it downplayed the necessity of tension and conflict in its practice and tradition.
Wells Fargo is so confident in its practices and controls that it has said it does not need to halt foreclosures, as other banks have.
Until now, Twitter has been mostly benign in its practices, at least when it comes to users' speech.
It is a major change in its practices, and a challenge for others in the industry to follow suit.
Because New York suspended its $3 million contract with Ciber Inc., the laboratory that was testing the new models, after federal officials found deficiencies in its practices.
The Obama Administration has, in its practices, embraced the position that the leaking of classified information to reporters is a problem properly addressed with the Espionage Act.
