The phrase "as it was applied" is correct and usable in written English.
You can use it when discussing how a particular concept, method, or rule was implemented or utilized in a specific context.
Example: "The theory was effective in practice, particularly as it was applied in real-world scenarios."
Alternatives: "as it was utilized" or "as it was implemented".
Under that system, as it was applied in the Americal Division, violations of the rules of engagement simply did not take place.
Dickens's novel was a satire of the philosophy of utilitarianism as it was applied to education: the idea that working-class children needed to know enough to work in factories and nothing more.
Though the M car formula held pure through the 1990s even as it was applied to almost every BMW vehicle line (the 7 Series sedans being the notable exception), the pull of the mass market was overwhelming.
The new Italian prime minister, Mario Monti, said this week that Italy would support an oil embargo as long as it was applied gradually and deliveries to repay Tehran's debts to the Italian energy company ENI were exempted.
Ronald L. Numbers, a science historian at the University of Wisconsin, said that many evangelical Protestants were once willing to accept the theory, as long as it was applied only to animals, not to humans.
The methodology for practice parameter development by the AAN is described as it was applied to evaluating AEDs.
"In my opinion," he added, "the law as it is applied and as it is written is blatantly unconstitutional".
"It makes good sense for a local district to interpret these policies in a way that is logical to them, as long as it is applied consistently.
My faith in the law, as it's applied in theory, is too strong for me to want to consider any alternative.
There is some hope for parliamentary reporters in the parallel he draws with qualified privilege as it is applied to court reporting.
