The phrase "a key modification" is correct and usable in written English.
It can be used when referring to an important change or adjustment in a process, system, or document.
Example: "The team implemented a key modification to the software that significantly improved its performance."
Alternatives: "an essential change" or "a crucial adjustment."
Small wheels were added to the sleds on this ride, a key modification that later persuaded some historians to credit it as the first wheeled coaster.
A key modification was to support a custom-built emergency recovery system, which is triggered by loss of a heart-beat signal from the autopilot.
Phosphorylation is a key modification involved in signal transduction, and thus participates in many of the dynamic processes of the cell.
For this reason, we made a key modification to the search model based on the use of unique transcript loci instead of unique gene loci.
To avoid missing potential bidirectional genes such as those that give rise to two or more transcripts, we made a key modification to Trinklein's search model.
A key modification would be to recognize the magnitude of the health system and environmental influence on the overall journey, networks of care as well as the individual experience.
Recently, authors [ 30] have performed a further key modification, which allows following the degree of hemolysis via turbidity of the erythrocyte suspension without centrifugation.
During PC progression, PTEN inactivation is an established key modification for the emergence of androgen refractoriness [ 44].
The Board of Education's longitudinal study of bilingual education indicates that while the current program benefits students, a few key modifications, like requiring teacher certification and eliminating program inconsistencies, will make it even more effective.
One key modification of the RCAS/tv-a model is the addition of an inducible component.
(6) Among the different possible histone modifications, trimethylation of histone H3 lysine 27 (H3K27me3) has been identified as a key epigenetic modification during development, including neural cell differentiation.
