The phrase "a principal task of" is correct and usable in written English.
It can be used to describe a primary or main responsibility or duty associated with a particular role or function.
Example: "A principal task of the project manager is to ensure that the project stays on schedule and within budget."
Alternatives: "a key responsibility of" or "a main duty of".
A principal task is to explore pattern and process in lichen epiphyte diversity – species composition and richness – therefore demonstrating the utility of lichens as an ecological model system.
Classically, a dual-task paradigm is used to test, at a behavioral level, if neural resources called upon by a concurrent task participate to a principal task [40] [43].
These beliefs lead to what Popper calls 'The Historicist Doctrine of the Social Sciences', the views (a) that the principal task of the social sciences is to make predictions about the social and political development of man, and (b) that the task of politics, once the key predictions have been made, is, in Marx's words, to lessen the 'birth pangs' of future social and political developments.
Cardano thinks that the principal task of a moral philosopher should be that of freeing the mind from misapprehensions and prejudices: "There are many people who prefer to be happy in a mistaken way rather than acknowledge the reality of their affairs and their condition" (De utilitate, OO, II, 24b).
Traditionally, curbing inflation, not worrying about deflation, has been the principal task of central bankers.
Counterfactual speculation is not central to mainstream historians of the Third Reich, and the examples Rosenfeld cites are merely throwaway remarks, peripheral and ultimately irrelevant to the historian's principal task of explaining what actually did happen.
The principal task of this EHF Expert Group Consensus Statement is to bring the definition of rCM up to date.
The principal task of the philosophy of intention is to uncover and describe the unity of these three forms.
So the principal task of this summit is to try to reassure worried Nato members and to send clear signals to Moscow about Nato's resolve.
