"constrain the extent" is a correct and usable phrase in written English.
It means to limit or restrict the degree or scope of something. Example: The new policy aims to constrain the extent of pollution by setting stricter regulations on emissions from factories.
These two estimates were important to constrain the extent of the desalination of the system.
Property rights, according to Nozick, constrain the extent to which we are entitled to act on our intuitions and theories about distributive justice.
The spatial pattern indicates that the azimuthal coverage of the offshore stations is not sufficient to constrain the extent of the source area well.
Woven surface plies are often used in composite aerostructures to mitigate damage during drilling and constrain the extent of damage during low velocity impact.
These limitations constrain the extent to which the PIAAC data allows to investigate key predictors and outcomes of the PIAAC skills and how extensively research and policy questions can be addressed.
It is generally time-consuming and difficult to accurately constrain the extent and thickness of volcanic ash layers, and the spatial variation of impacts on the flora, fauna and human activities from field surveys.
(The term shepherd often is used to describe any moon that constrains the extent of a ring through gravitational forces. Consequently, in this expanded sense, moons such as Janus and Epimetheus, whose ring effects are described in the paragraph above, and gap-creating moons such as Pan also qualify as shepherds).
They were particularly concerned to address worries of undue centralization, arguing that such worries should be addressed not by constraining the extent of power in the relevant fields, such as defense, but instead by the composition of the central authority (Federalist 31).
Like many states, the Missouri legislature has a preemption statute on the books, which sharply constrains the extent to which municipalities can regulate firearms on their own.
➢ Illiteracy: The limited literacy of the majority of FCHVs constrained the extent of detailed data collection for monitoring and evaluation.
