The phrase "a key model" is correct and usable in written English.
It can be used to refer to an important or fundamental example or framework in a particular context, such as research, theory, or practice.
Example: "In our study, we identified a key model that explains the relationship between variables A and B."
Alternatives: "a crucial framework" or "an essential example."
A strike could deprive Opel dealers of a key model.
Thus the chick provides us with a key model for understanding the development of early embryos for all vertebrates, including humans.
Well it turns out that a key model used by the Treasury does not take these things into account at all.
Sheila's work in Oxfordshire became a key model for the 1978 Warnock report on integrating disabled children into mainstream schools, although unlike many post-Warnock attempts, Sheila integrated the children only as much as they and the host schools could happily manage.
A key model for examining the activity-dependent development of primary visual cortex (V1) involves the imbalance in activity between the two eyes induced by monocular deprivation (MD).
A key model parameter, the Darcy permeability of the bone lacunar canalicular system (LCS), is difficult to measure using traditional methods due to the co-existence of the larger vascular and smaller LCS porosities.
The three-dimensional structure of the pilus generated from TEM images fitted with high resolution crystal structure of the major fragment of RrgB have provided a detailed molecular view of the backbone of S. pneumoniae pilus, and could be a key-model for the study of the assembly, attachment and function of the pili in Gram-positive bacteria.
For each of these species pools, we used the Multiple-Covariate Distance Sampling (MCDS) engine in the program DISTANCE, version 6.0 [20] to fit four detection function models for each year: a half-normal key model, a hazard-rate key model, and each with vegetation type as a factor covariate.
We used the MCDS engine to fit for each year a half-normal key model and a hazard-rate key model and, for 2007 2009, each with observer as a factor covariate.
The build-to-order supply chain (BOSC) model is a key operation model for providing services/products at present.
9 A summary of key model assumptions may be found in table 1.
