The phrase "a primary facet" is correct and usable in written English.
You can use it when discussing an important aspect or feature of a subject or topic.
Example: "Sustainability is a primary facet of our business strategy, guiding our decisions and practices."
Alternatives: "a key aspect" or "an essential element."
The chapters in this publication are all based on primary research and examine various facets of the relationship between migration, poverty and development, including issues that are often ignored in the migration-development debate like migration and food security and migration and vulnerability to HIV.
The 2S-NISC prototype consists of 80 primary facet mirrors with a dimension of 5 cm × 5 cm each, 20 secondary facet mirrors with a dimension of 8 cm × 8 cm each, and densely packed plastic optical fibers as a daylight distribution system.
This componential approach, which identifies certain affective, cognitive and psychomotor elements as primary facets of the disorder may require the systematic combining of clinical rating, self-report and objective performance measures.
The primary facets of openness accounting for the domain-level findings were O2-aesthetics and O4-actions.
Conclusions drawn indicate three primary facets of test qualities that could be addressed to increase the IELTS speaking sub-test's usefulness and therefore effectiveness in the East Asian regional context, although these test quality improvements could also be considered as beneficial when applied on a global scale.
This strategy had three primary facets, outlined below.
The search strategy involved 5 primary facets (comprised of medical subject headings [MeSH], keywords, and Emtree terms [used to index the Embase database], as appropriate) that were combined to answer the different study objectives; these facets focused on organ, antibody, transfusion, transplantation, and outcome.
Furthermore, transfer of forces to the posterior structures of the lumbar spine through disk narrowing is conceptually a primary mechanism whereby disk changes lead to facet changes [ 32].
Two of the square facets of a Type A facet belong to Type B facets, and a pair of Type B facets share a hexagon consisting of six Type I rays.
Consequently, the time derivative of the magnetic flux defined on the enclosed primary cell facet represents the right-hand side of the equation.
