The phrase "a primary reference" is correct and usable in written English.
It can be used when discussing a main source of information or authority on a particular topic.
Example: "In her research paper, she cited a primary reference that provided crucial data for her argument."
Alternatives: "a main source" or "a key reference".
Gasoline, a primary reference fuel mixture (PRF80), and several representative real-fuel constituents were examined.
His two volume seminal text, The Internal Combustion Engine in Theory and Practice, remains a primary reference for automotive engineers.
Iso-Octane (2,2,4-trimethylpentane) is a primary reference fuel and an important component of gasoline fuels.
"After many years of searching, only one source has been identified which contains a primary reference to Dr. Stewart's quote,'' the authors wrote.
Heavy knock was deliberately induced by adopting inlet air heating and a primary reference fuel blend of reduced octane rating.
Our study provides a primary reference for designing a locally relevant antenatal diagnostic test to control the spread of thalassemia.
The PDB provides a primary source of protein structure reference data for the community.
If an interaction derived from a single primary reference is found in slightly different forms in multiple databases, a single instance with the appropriate reference appears in DroID.
Finally, the CDAC method coupled CFD was applied to simulate a diesel DICI engine under three different engine speeds with a detailed primary reference fuel (PRF) mechanism of more than 1000 species.
The fuel chemistry coupled was a reduced primary reference fuel (PRF) mechanism consisting of 45 species and 142 reactions including the NOx mechanism from GRI chemistry.
Pure HbA1c and pure HbA0 are isolated from human blood and mixed in well-defined proportions to produce a certified primary reference material set used to calibrate the primary reference measurement system (PRMS).
